[PATCH] fix gitk with lots of tags

[Jim Radford <radford@blackbean.org>]

Hi Paul,

This fix allow gitk to be used on repositories with lots of tags.  It
bypasses git-rev-parse and passes its arguments to git-rev-list
directly to avoid the command line length restrictions.

Signed-Off-By: Jim Radford <radford@blackbean.org>

-Jim

---
diff --git a/gitk b/gitk
index 26fa79a..40672fb 100755
--- a/gitk
+++ b/gitk
@@ -17,19 +17,11 @@ proc gitdir {} {
 }
 
 proc parse_args {rargs} {
-    global parsed_args
-
-    if {[catch {
-	set parse_args [concat --default HEAD $rargs]
-	set parsed_args [split [eval exec git-rev-parse $parse_args] "\n"]
-    }]} {
-	# if git-rev-parse failed for some reason...
-	if {$rargs == {}} {
-	    set rargs HEAD
-	}
-	set parsed_args $rargs
+    if {$rargs == {}} {
+        return HEAD
+    } else {
+	return $rargs
     }
-    return $parsed_args
 }
 
 proc start_rev_list {rlargs} {