Fix unlock issue during directed pickup

git-svn-id: https://svn.code.sf.net/p/chan-sccp-b/code/trunk@4982 43c1dc8c-776e-4df2-8ef1-6e829299be21
cleanup canmatch display in debug log

git-svn-id: https://svn.code.sf.net/p/chan-sccp-b/code/trunk@4983 43c1dc8c-776e-4df2-8ef1-6e829299be21