Merge branch 'maint-1.5.4' into maint

* maint-1.5.4:
  cvsimport: always pass user data to "system" as a list
  fix reflog approxidate parsing bug

Author: gitster

git-cvsimport.perl

@@ -772,7 +772,7 @@ sub commit {
 	waitpid($pid,0);
 	die "Error running git-commit-tree: $?\n" if $?;
 
-	system("git-update-ref $remote/$branch $cid") == 0
+	system('git-update-ref', "$remote/$branch", $cid) == 0
 		or die "Cannot write branch $branch for update: $!\n";
 
 	if ($tag) {

sha1_name.c

@@ -351,8 +351,11 @@ static int get_sha1_basic(const char *str, int len, unsigned char *sha1)
 		}
 		if (0 <= nth)
 			at_time = 0;
-		else
-			at_time = approxidate(str + at + 2);
+		else {
+			char *tmp = xstrndup(str + at + 2, reflog_len);
+			at_time = approxidate(tmp);
+			free(tmp);
+		}
 		if (read_ref_at(real_ref, at_time, nth, sha1, NULL,
 				&co_time, &co_tz, &co_cnt)) {
 			if (at_time)