Some minor warnings during compile on RPi

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In file included from kenwood.c:32:
kenwood.c: In function ‘kenwood_transaction’:
kenwood.c:273:19: warning: ‘%s’ directive output may be truncated writing between 2 and 2147483645 bytes into a region of size 23969 [-Wformat-truncation=]
  273 |                   "%s called cmd=%s datasize=%d, datasize < cmd length?\n", __func__,
      |                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../../include/hamlib/rig.h:3726:90: note: in definition of macro ‘rig_debug’
 3726 | ,fmt,...) do { snprintf(debugmsgsave2,sizeof(debugmsgsave2),fmt,__VA_ARGS__);rig_debug(debug_level,fmt,##__VA_ARGS__); add2debugmsgsave(debugmsgsave2); } while(0)
      |                                                             ^~~

kenwood.c:273:34: note: format string is defined here
  273 |                   "%s called cmd=%s datasize=%d, datasize < cmd length?\n", __func__,
      |                                  ^~
In file included from kenwood.c:32:
kenwood.c:273:19: note: directive argument in the range [1, 2147483644]
  273 |                   "%s called cmd=%s datasize=%d, datasize < cmd length?\n", __func__,
      |                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../../include/hamlib/rig.h:3726:90: note: in definition of macro ‘rig_debug’
 3726 | ,fmt,...) do { snprintf(debugmsgsave2,sizeof(debugmsgsave2),fmt,__VA_ARGS__);rig_debug(debug_level,fmt,##__VA_ARGS__); add2debugmsgsave(debugmsgsave2); } while(0)
      |                                                             ^~~

../../include/hamlib/rig.h:3726:45: note: ‘snprintf’ output between 70 and 2147483722 bytes into a destination of size 24000
 3726 | #define rig_debug(debug_level,fmt,...) do { snprintf(debugmsgsave2,sizeof(debugmsgsave2),fmt,__VA_ARGS__);rig_debug(debug_level,fmt,##__VA_ARGS__); add2debugmsgsave(debugmsgsave2); } while(0)
      |                                             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
kenwood.c:272:9: note: in expansion of macro ‘rig_debug’
  272 |         rig_debug(RIG_DEBUG_WARN,
      |         ^~~~~~~~~

In file included from ../../src/serial.h:25,
                 from elecraft.c:29:
elecraft.c: In function ‘verify_kenwood_id’:
elecraft.c:465:38: warning: ‘%s’ directive output may be truncated writing between 5 and 2147483645 bytes into a region of size 23971 [-Wformat-truncation=]
  465 |         rig_debug(RIG_DEBUG_VERBOSE, "%s: Rig ID is %s\n", __func__, id);
      |                                      ^~~~~~~~~~~~~~~~~~~~
../../include/hamlib/rig.h:3726:90: note: in definition of macro ‘rig_debug’
 3726 | ,fmt,...) do { snprintf(debugmsgsave2,sizeof(debugmsgsave2),fmt,__VA_ARGS__);rig_debug(debug_level,fmt,##__VA_ARGS__); add2debugmsgsave(debugmsgsave2); } while(0)
      |                                                             ^~~

elecraft.c:465:53: note: format string is defined here
  465 |         rig_debug(RIG_DEBUG_VERBOSE, "%s: Rig ID is %s\n", __func__, id);
      |                                                     ^~
In file included from ../../src/serial.h:25,
                 from elecraft.c:29:
../../include/hamlib/rig.h:3726:45: note: ‘snprintf’ output between 36 and 2147483676 bytes into a destination of size 24000
 3726 | #define rig_debug(debug_level,fmt,...) do { snprintf(debugmsgsave2,sizeof(debugmsgsave2),fmt,__VA_ARGS__);rig_debug(debug_level,fmt,##__VA_ARGS__); add2debugmsgsave(debugmsgsave2); } while(0)
      |                                             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
elecraft.c:465:9: note: in expansion of macro ‘rig_debug’
  465 |         rig_debug(RIG_DEBUG_VERBOSE, "%s: Rig ID is %s\n", __func__, id);
      |         ^~~~~~~~~
elecraft.c:460:38: warning: ‘%s’ directive output may be truncated writing between 5 and 2147483645 bytes into a region of size 23976 [-Wformat-truncation=]
  460 |         rig_debug(RIG_DEBUG_VERBOSE, "%s: Rig (%s) is not a K2 or K3\n", __func__, id);
      |                                      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../../include/hamlib/rig.h:3726:90: note: in definition of macro ‘rig_debug’
 3726 | ,fmt,...) do { snprintf(debugmsgsave2,sizeof(debugmsgsave2),fmt,__VA_ARGS__);rig_debug(debug_level,fmt,##__VA_ARGS__); add2debugmsgsave(debugmsgsave2); } while(0)
      |                                                             ^~~

elecraft.c:460:48: note: format string is defined here
  460 |         rig_debug(RIG_DEBUG_VERBOSE, "%s: Rig (%s) is not a K2 or K3\n", __func__, id);
      |                                                ^~
In file included from ../../src/serial.h:25,
                 from elecraft.c:29:
../../include/hamlib/rig.h:3726:45: note: ‘snprintf’ output between 50 and 2147483690 bytes into a destination of size 24000
 3726 | #define rig_debug(debug_level,fmt,...) do { snprintf(debugmsgsave2,sizeof(debugmsgsave2),fmt,__VA_ARGS__);rig_debug(debug_level,fmt,##__VA_ARGS__); add2debugmsgsave(debugmsgsave2); } while(0)
      |                                             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
elecraft.c:460:9: note: in expansion of macro ‘rig_debug’
  460 |         rig_debug(RIG_DEBUG_VERBOSE, "%s: Rig (%s) is not a K2 or K3\n", __func__, id);
      |         ^~~~~~~~~

In file included from g313-posix.c:34:
g313-posix.c: In function ‘g313_set_conf’:
g313-posix.c:569:39: warning: ‘%s’ directive output may be truncated writing between 64 and 2147483645 bytes into a region of size 23973 [-Wformat-truncation=]
  569 |             rig_debug(RIG_DEBUG_WARN, "%s: set if_path %s is too long\n", __func__, val);
      |                                       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../../include/hamlib/rig.h:3726:90: note: in definition of macro ‘rig_debug’
 3726 | ,fmt,...) do { snprintf(debugmsgsave2,sizeof(debugmsgsave2),fmt,__VA_ARGS__);rig_debug(debug_level,fmt,##__VA_ARGS__); add2debugmsgsave(debugmsgsave2); } while(0)
      |                                                             ^~~

g313-posix.c:569:56: note: format string is defined here
  569 |             rig_debug(RIG_DEBUG_WARN, "%s: set if_path %s is too long\n", __func__, val);
      |                                                        ^~
In file included from g313-posix.c:34:
../../include/hamlib/rig.h:3726:45: note: ‘snprintf’ output between 105 and 2147483686 bytes into a destination of size 24000
 3726 | #define rig_debug(debug_level,fmt,...) do { snprintf(debugmsgsave2,sizeof(debugmsgsave2),fmt,__VA_ARGS__);rig_debug(debug_level,fmt,##__VA_ARGS__); add2debugmsgsave(debugmsgsave2); } while(0)
      |                                             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
g313-posix.c:569:13: note: in expansion of macro ‘rig_debug’
  569 |             rig_debug(RIG_DEBUG_WARN, "%s: set if_path %s is too long\n", __func__, val);
      |             ^~~~~~~~~
g313-posix.c:582:39: warning: ‘%s’ directive output may be truncated writing between 64 and 2147483645 bytes into a region of size 23967 [-Wformat-truncation=]
  582 |             rig_debug(RIG_DEBUG_WARN, "%s: set spectrum_path %s is too long\n", __func__,
      |                                       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../../include/hamlib/rig.h:3726:90: note: in definition of macro ‘rig_debug’
 3726 | ,fmt,...) do { snprintf(debugmsgsave2,sizeof(debugmsgsave2),fmt,__VA_ARGS__);rig_debug(debug_level,fmt,##__VA_ARGS__); add2debugmsgsave(debugmsgsave2); } while(0)
      |                                                             ^~~

g313-posix.c:582:62: note: format string is defined here
  582 |            rig_debug(RIG_DEBUG_WARN, "%s: set spectrum_path %s is too long\n", __func__,
      |                                                             ^~
In file included from g313-posix.c:34:
../../include/hamlib/rig.h:3726:45: note: ‘snprintf’ output between 111 and 2147483692 bytes into a destination of size 24000
 3726 | #define rig_debug(debug_level,fmt,...) do { snprintf(debugmsgsave2,sizeof(debugmsgsave2),fmt,__VA_ARGS__);rig_debug(debug_level,fmt,##__VA_ARGS__); add2debugmsgsave(debugmsgsave2); } while(0)
      |                                             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
g313-posix.c:582:13: note: in expansion of macro ‘rig_debug’
  582 |             rig_debug(RIG_DEBUG_WARN, "%s: set spectrum_path %s is too long\n", __func__,
      |             ^~~~~~~~~
g313-posix.c:556:39: warning: ‘%s’ directive output may be truncated writing between 64 and 2147483645 bytes into a region of size 23970 [-Wformat-truncation=]
  556 |             rig_debug(RIG_DEBUG_WARN, "%s: set audio_path %s is too long\n", __func__, val);
      |                                       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../../include/hamlib/rig.h:3726:90: note: in definition of macro ‘rig_debug’
 3726 | ,fmt,...) do { snprintf(debugmsgsave2,sizeof(debugmsgsave2),fmt,__VA_ARGS__);rig_debug(debug_level,fmt,##__VA_ARGS__); add2debugmsgsave(debugmsgsave2); } while(0)
      |                                                             ^~~

g313-posix.c:556:59: note: format string is defined here
  556 |             rig_debug(RIG_DEBUG_WARN, "%s: set audio_path %s is too long\n", __func__, val);
      |                                                           ^~
In file included from g313-posix.c:34:
../../include/hamlib/rig.h:3726:45: note: ‘snprintf’ output between 108 and 2147483689 bytes into a destination of size 24000
 3726 | #define rig_debug(debug_level,fmt,...) do { snprintf(debugmsgsave2,sizeof(debugmsgsave2),fmt,__VA_ARGS__);rig_debug(debug_level,fmt,##__VA_ARGS__); add2debugmsgsave(debugmsgsave2); } while(0)
      |                                             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
g313-posix.c:556:13: note: in expansion of macro ‘rig_debug’
  556 |             rig_debug(RIG_DEBUG_WARN, "%s: set audio_path %s is too long\n", __func__, val);
      |             ^~~~~~~~~

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No more warnings.