more padding for large files

Change-Id: I567bb8cf1ae78dd26d8e4ff8658c8648b8eb53e0
diff --git a/ls.c b/ls.c
index 962bf47..4990ed9 100644
--- a/ls.c
+++ b/ls.c
@@ -297,7 +297,7 @@
                date, name);
         break;
     case S_IFREG:
-        printf("%s %-8s %-8s %8lld %s %s\n",
+        printf("%s %-8s %-8s %12lld %s %s\n",
                mode, user, group, s.st_size, date, name);
         break;
     case S_IFLNK: {