[PATCH] Allow gitk to continue and show error message in new repos

If there is no commit made yet, gitk just dumps a Tcl error on stderr,
which sometimes is hard to see. Noticed when gitk was run from Xfce
file manager (thunar's custom action).

Signed-off-by: Alex Riesen <redacted>
---
 gitk |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/gitk b/gitk
index f74ce51..fc7cc8c 100755
--- a/gitk
+++ b/gitk

@@ -427,7 +427,7 @@ proc readrefs {} {
 	    lappend idotherrefs($id) $name
 	}
     }
-    close $refd
+    catch { close $refd }
     set mainhead {}
     set mainheadid {}
     catch {

-- 
1.5.3.rc3.48.g5b618