Merge branch 'jk/common-main-2.8' into jk/common-main

* jk/common-main-2.8:
  mingw: declare main()'s argv as const
  common-main: call git_setup_gettext()
  common-main: call restore_sigpipe_to_default()
  common-main: call sanitize_stdfds()
  common-main: call git_extract_argv0_path()
  add an extra level of indirection to main()

t/helper/test-sha1.c

@@ -1,6 +1,6 @@
 #include "cache.h"
 
-int main(int ac, char **av)
+int cmd_main(int ac, const char **av)
 {
 	git_SHA_CTX ctx;
 	unsigned char sha1[20];