Version 1.15.2

* Add test case for #3351 (wrong GMT offset in SunOS/Solaris fallback)

* Fix #3352 (Missing test for Apple / POSIX.1-2024 chooses buggy workaround)

Apple platforms have had the tm_gmtoff-field at least since Mac OS X 10.0,
as are POSIX.1-2024 conforming systems, which are also required to support
it.

This has the unfortunate effect to use the SunOS/Solaris fallback, which
doesn't compute the correct value if the passed value of tm isn't the
current system time, i.e. localtime(::time()) (#3351).

* Fixed GMT offset test

---------

Co-authored-by: toh <toh@ableton.com>

include/spdlog/version.h

@@ -5,7 +5,7 @@
 
 #define SPDLOG_VER_MAJOR 1
 #define SPDLOG_VER_MINOR 15
-#define SPDLOG_VER_PATCH 1
+#define SPDLOG_VER_PATCH 2
 
 #define SPDLOG_TO_VERSION(major, minor, patch) (major * 10000 + minor * 100 + patch)
 #define SPDLOG_VERSION SPDLOG_TO_VERSION(SPDLOG_VER_MAJOR, SPDLOG_VER_MINOR, SPDLOG_VER_PATCH)