builtin/describe.c: print debug statements earlier

When debugging, print the received argument at the start of the
function instead of in the middle. This ensures that the received
argument is printed in all code paths, and also allows a subsequent
refactoring to not need to move the "arg" parameter.

Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

builtin/describe.c

@@ -293,6 +293,9 @@ static void describe(const char *arg, int last_one)
 	unsigned long seen_commits = 0;
 	unsigned int unannotated_cnt = 0;
 
+	if (debug)
+		fprintf(stderr, _("describe %s\n"), arg);
+
 	if (get_oid(arg, &oid))
 		die(_("Not a valid object name %s"), arg);
 	cmit = lookup_commit_reference(&oid);
@@ -316,7 +319,7 @@ static void describe(const char *arg, int last_one)
 	if (!max_candidates)
 		die(_("no tag exactly matches '%s'"), oid_to_hex(&cmit->object.oid));
 	if (debug)
-		fprintf(stderr, _("searching to describe %s\n"), arg);
+		fprintf(stderr, _("No exact match on refs or tags, searching to describe\n"));
 
 	if (!have_util) {
 		struct hashmap_iter iter;