Merge branch 'jk/run-command-eacces' into maint

When PATH contains an unreadable directory, alias expansion code did
not kick in, and failed with an error that said "git-subcmd" was not
found.

By Jeff King (1) and Ramsay Jones (1)
* jk/run-command-eacces:
  run-command: treat inaccessible directories as ENOENT
  compat/mingw.[ch]: Change return type of exec functions to int

1 files changed, 2 insertions, 0 deletions

diff --git a/cache.h b/cache.h
index 806bf2b76f..5e6eef9b4d 100644
--- a/cache.h
+++ b/cache.h
@@ -1305,4 +1305,6 @@ extern struct startup_info *startup_info;
 /* builtin/merge.c */
 int checkout_fast_forward(const unsigned char *from, const unsigned char *to);
 
+int sane_execvp(const char *file, char *const argv[]);
+
 #endif /* CACHE_H */