libgpg-error-1.51
argparse: Add support to read values from the Windows Registry.
spawn: Add new function to modify environment.
argparser: Implement a command mode.
build,tests: Fix leaks of memory or file pointer.
core: Add gpgrt_fnameconcat and gpgrt_absfnameconcat.
tests: Add a test for locking when single thread.
Fix build without threads
tests: Fix a memory leak.
core: New function gpgrt_reallocarray.
tests,w32: Use CreatePipe and es_sysopen.
Avoid use of 'nullptr' for an identifier.
spawn: Shorter identifier gpgrt_spawn_actions_set_env_rev.
Add more tests for t-printf and t-strerror.
New public function gpgrt_access.
core: Add a limited version of gpgrt_ftruncate.