test_cel: Update pickup test to expect CANCEL instead of ANSWSER

The CEL pickup test previously looked for a disposition of ANSWER between the
original caller/peer when the call is picked up. This is actually incorrect:
the disposition should, at the very least, not be ANSWER as the call was
never ANSWERed. The disposition is now CANCEL; this patch updates the test
accordingly.
........

Merged revisions 425757 from http://svn.asterisk.org/svn/asterisk/branches/12
........

Merged revisions 425758 from http://svn.asterisk.org/svn/asterisk/branches/13


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@425759 65c4cc65-6c06-0410-ace0-fbb531ad65f3

tests/test_cel.c

@@ -1608,7 +1608,7 @@ AST_TEST_DEFINE(test_cel_dial_pickup)
 
 	ast_channel_publish_dial(chan_caller, chan_callee, NULL, "ANSWER");
 
-	HANGUP_CHANNEL(chan_caller, AST_CAUSE_NORMAL, "ANSWER");
+	HANGUP_CHANNEL(chan_caller, AST_CAUSE_NORMAL, "CANCEL");
 	HANGUP_CHANNEL(chan_callee, AST_CAUSE_NORMAL, "");
 
 	return AST_TEST_PASS;