Increased max database name length to 128

If a ‘USE <database name larger than 30 characters’ query is executed,
the dbname function would be trimmed. 128 is based on the microsoft
create database docs.

include/dblib.h

@@ -32,6 +32,9 @@ extern "C"
 
 /* $Id: dblib.h,v 1.49 2011-12-05 02:26:31 jklowden Exp $ */
 
+/* https://msdn.microsoft.com/en-us/library/ms176061.aspx */
+#define DBMAXNAME   128
+
 typedef enum tag_DB_RESULT_STATE {
 	  _DB_RES_INIT
 	, _DB_RES_RESULTSET_EMPTY

include/sybdb.h

@@ -64,7 +64,6 @@ static const void *const no_unused_sybdb_h_warn[] = { rcsid_sybdb_h, no_unused_s
 #define INT_TIMEOUT	3
 
 #define DBMAXNUMLEN 33
-#define DBMAXNAME   30
 
 /**
  * DBVERSION_xxx are used with dbsetversion()