[sysutils/gz-tools] Fix dynamic loading of 'backward' library

* patch-ab: always use full path to the library, so as to no rely on
  LD_LIBRARY_PATH.

Bump PKGREVISION.

Author: Anthony Mallet

sysutils/gz-tools/Makefile

@@ -2,6 +2,7 @@
 # Created:			Anthony Mallet on Thu,  6 Feb 2025
 #
 
+PKGREVISION=	1
 DISTNAME=	gz-tools-2.0.0
 
 GZ_COMMENT=	command line interface

sysutils/gz-tools/distinfo

@@ -2,3 +2,4 @@ SHA1 (gz-tools-gz-tools2_2.0.0.tar.gz) = 55f95d01462f602fb870ede858b7eb6e707d94b
 RMD160 (gz-tools-gz-tools2_2.0.0.tar.gz) = 2c77aa1fd1b08b0afadc839a6ac55b1fb74c5692
 Size (gz-tools-gz-tools2_2.0.0.tar.gz) = 60973 bytes
 SHA1 (patch-aa) = fe582aab3cb742096819c31762915963e8dce4c0
+SHA1 (patch-ab) = f9b3a1f23211d8bca0bfcff49c57465e457ee14f

sysutils/gz-tools/patches/patch-ab

@@ -0,0 +1,13 @@
+Always use full path to libbackward.
+
+--- src/CMakeLists.txt~	2022-09-22 23:00:59.000000000 +0200
++++ src/CMakeLists.txt	2025-03-13 12:37:09.897991272 +0100
+@@ -39,7 +39,7 @@
+ 
+ #===============================================================================
+ # Used for the installed version.
+-if(APPLE)
++if(TRUE)
+   # On macOS, the full path to the library since DYLD_LIBRARY_PATH may not work.
+   set(backward_library_name ${CMAKE_INSTALL_FULL_LIBDIR}/$<TARGET_FILE_NAME:backward>)
+ else()