resolve_gitlink_ref(): rename path parameter to submodule

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

refs.c

@@ -1299,26 +1299,27 @@ const char *resolve_ref_unsafe(const char *refname, int resolve_flags,
 				       resolve_flags, sha1, flags);
 }
 
-int resolve_gitlink_ref(const char *path, const char *refname, unsigned char *sha1)
+int resolve_gitlink_ref(const char *submodule, const char *refname,
+			unsigned char *sha1)
 {
-	size_t len = strlen(path);
+	size_t len = strlen(submodule);
 	struct ref_store *refs;
 	int flags;
 
-	while (len && path[len - 1] == '/')
+	while (len && submodule[len - 1] == '/')
 		len--;
 
 	if (!len)
 		return -1;
 
-	if (path[len]) {
+	if (submodule[len]) {
 		/* We need to strip off one or more trailing slashes */
-		char *stripped = xmemdupz(path, len);
+		char *stripped = xmemdupz(submodule, len);
 
 		refs = get_ref_store(stripped);
 		free(stripped);
 	} else {
-		refs = get_ref_store(path);
+		refs = get_ref_store(submodule);
 	}
 
 	if (!refs)

refs.h

@@ -77,11 +77,12 @@ int is_branch(const char *refname);
 int peel_ref(const char *refname, unsigned char *sha1);
 
 /**
- * Resolve refname in the nested "gitlink" repository that is located
- * at path.  If the resolution is successful, return 0 and set sha1 to
- * the name of the object; otherwise, return a non-zero value.
+ * Resolve refname in the nested "gitlink" repository in the specified
+ * submodule (which must be non-NULL). If the resolution is
+ * successful, return 0 and set sha1 to the name of the object;
+ * otherwise, return a non-zero value.
  */
-int resolve_gitlink_ref(const char *path, const char *refname,
+int resolve_gitlink_ref(const char *submodule, const char *refname,
 			unsigned char *sha1);
 
 /*