Improve sync-all's old-time-repo check

It now checks that the directory exists before complaining that it's
old.

1 files changed, 1 insertions, 1 deletions

diff --git a/sync-all b/sync-all
index 889f124b5a..b24a8327cf 100755
--- a/sync-all
+++ b/sync-all
@@ -882,7 +882,7 @@ EOF
     }
 
     message "== Checking for old time from tarball";
-    if (! -e "libraries/time/.git") {
+    if (-d "libraries/time" and ! -e "libraries/time/.git") {
             print <<EOF;
 ============================
 ATTENTION!