correct terminology (issue #5100)

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@6510 65c4cc65-6c06-0410-ace0-fbb531ad65f3

configs/queues.conf.sample

@@ -43,7 +43,7 @@ persistentmembers = yes
 ;strategy = ringall
 ;
 ; Second settings for service level (default 0)
-; Used for service level statistics (calls completed within service level time frame)
+; Used for service level statistics (calls answered within service level time frame)
 ;servicelevel = 60
 ;
 ; A context may be specified, in which if the user types a SINGLE