[PATCH] Generic support for pulling refs

This adds support to pull.c for requesting a reference and writing it to a
file. All of the git-*-pull programs get stubs for now.

Signed-off-by: Linus Torvalds <torvalds@osdl.org>

local-pull.c

@@ -73,6 +73,11 @@ int fetch(unsigned char *sha1)
 	return -1;
 }
 
+int fetch_ref(char *ref, unsigned char *sha1)
+{
+	return -1;
+}
+
 static const char *local_pull_usage = 
 "git-local-pull [-c] [-t] [-a] [-l] [-s] [-n] [-v] [-d] [--recover] commit-id path";