[PATCH] Fix git patch header processing in git-apply.

Stop processing and return NULL if we encounter a '\n' character
before we have two matching names in the git header.

Signed-off-by: Robert Fitzsimons <robfitz@273k.net>
Signed-off-by: Junio C Hamano <junkio@cox.net>

apply.c

@@ -387,7 +387,7 @@ static char *git_header_name(char *line)
 		default:
 			continue;
 		case '\n':
-			break;
+			return NULL;
 		case '\t': case ' ':
 			second = name+len;
 			for (;;) {