remote: expose parse_push_refspec function

A future patch needs access to the 'parse_push_refspec()' function so
let's export the function so other modules can use it.

Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

remote.c

@@ -630,7 +630,7 @@ struct refspec *parse_fetch_refspec(int nr_refspec, const char **refspec)
 	return parse_refspec_internal(nr_refspec, refspec, 1, 0);
 }
 
-static struct refspec *parse_push_refspec(int nr_refspec, const char **refspec)
+struct refspec *parse_push_refspec(int nr_refspec, const char **refspec)
 {
 	return parse_refspec_internal(nr_refspec, refspec, 0, 0);
 }

remote.h

@@ -169,6 +169,7 @@ struct ref *ref_remove_duplicates(struct ref *ref_map);
 
 int valid_fetch_refspec(const char *refspec);
 struct refspec *parse_fetch_refspec(int nr_refspec, const char **refspec);
+extern struct refspec *parse_push_refspec(int nr_refspec, const char **refspec);
 
 void free_refspec(int nr_refspec, struct refspec *refspec);