# HG changeset patch
# User Martin von Zweigbergk <martinvonz@google.com>
# Date 1608183627 28800
# Node ID 60677eca74345737abc3d07b8fa27791fc1882cd
# Parent  818502d2f5e345a5708a042bba3d91c4638742f6
tests: remove undefined (empty) $opt from test-extdiff.t

It's been undefined for a long time (at least since .t unification).

Differential Revision: https://phab.mercurial-scm.org/D9621

diff -r 818502d2f5e3 -r 60677eca7434 tests/test-extdiff.t
--- a/tests/test-extdiff.t	Tue Apr 21 15:13:13 2020 +0200
+++ b/tests/test-extdiff.t	Wed Dec 16 21:40:27 2020 -0800
@@ -11,7 +11,7 @@
 
 Should diff cloned directories:
 
-  $ hg extdiff -o -r $opt
+  $ hg extdiff -o -r
   Only in a: a
   Only in a: b
   [1]