bogus "fatal: Not a git repository"

I was just testing that "git ls-remote" change by Junio, and when you're
not in a git repository, it gives this totally bogus warning. The _target_
obviously has to be a git repository, but there's no reason why you'd have
to be in a local git repo when doing an ls-remote.

The reason is commit 73136b2e8a by Dscho: it
adds calls to git-repo-config in git-parse-remote.sh to get the remote
shorthands etc.

Now, either we should just hide and ignore the error from git-repo-config
(probably bad, because some errors _are_ valid - like git-repo-config
failing due to bad syntax in the config file), or we should just make
git-repo-config quietly handle the case of not being in a git repository.

This does the latter: just quietly accepting (and doing nothing - trying
to set a value will result in the lock-file failing) our lot in life
sounds better than dying with a bogus error message.

Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Acked-By: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>

repo-config.c

@@ -108,7 +108,8 @@ static int get_value(const char* key_, const char* regex_)
 
 int main(int argc, const char **argv)
 {
-	setup_git_directory();
+	int nongit = 0;
+	setup_git_directory_gently(&nongit);
 
 	while (1 < argc) {
 		if (!strcmp(argv[1], "--int"))