Use 'change' instead of 'issue' when talking about Gerrit CLs

Change-Id: I17884d9ef7efdaf75ed575e66aca1034db0672b5
Reviewed-on: https://chromium-review.googlesource.com/413289
Reviewed-by: Andrii Shyshkalov <tandrii@chromium.org>
Commit-Queue: Aaron Gable <agable@chromium.org>
diff --git a/tests/git_cl_test.py b/tests/git_cl_test.py
index a52807c..6d22906 100755
--- a/tests/git_cl_test.py
+++ b/tests/git_cl_test.py
@@ -1625,7 +1625,7 @@
       ((['git', 'config', 'branch.master.gerritissue'],), CERR1),
       ((['git', 'config', 'rietveld.autoupdate'],), CERR1),
       ((['git', 'config', 'gerrit.host'],), 'true'),
-      ((['DieWithError', 'issue 123456 at ' + url + ' does not exist '
+      ((['DieWithError', 'change 123456 at ' + url + ' does not exist '
                          'or you have no access to it'],), SystemExitMock()),
     ]
     with self.assertRaises(SystemExitMock):