i2pd: restrict /etc/i2pd permissions

It's not a good idea to have /etc/i2pd/*.conf world-readable since
it may contain sensitive information.

srcpkgs/i2pd/template

@@ -1,7 +1,7 @@
 # Template file for 'i2pd'
 pkgname=i2pd
 version=2.46.0
-revision=1
+revision=2
 build_style=gnu-makefile
 make_build_args="USE_UPNP=yes"
 makedepends="zlib-devel boost-devel openssl-devel miniupnpc-devel
@@ -19,7 +19,9 @@ conf_files="
  /etc/i2pd/tunnels.conf"
 system_accounts="_i2pd"
 _i2pd_homedir="/var/lib/i2pd"
-make_dirs="/var/lib/i2pd 0700 _i2pd _i2pd"
+make_dirs="
+ /var/lib/i2pd 0700 _i2pd _i2pd
+ /etc/i2pd 0750 root _i2pd"
 
 case "${XBPS_TARGET_MACHINE}" in
 	x86_64*) ;;