AMI Docs: Fix Status channel parameter optionality
........

Merged revisions 421442 from http://svn.asterisk.org/svn/asterisk/branches/1.8
........

Merged revisions 421443 from http://svn.asterisk.org/svn/asterisk/branches/11


git-svn-id: http://svn.asterisk.org/svn/asterisk/branches/12@421444 f38db490-d61c-443f-a65b-d21fe96a405b
Fix compilation error on certain versions of GCC.



git-svn-id: http://svn.asterisk.org/svn/asterisk/branches/12@421447 f38db490-d61c-443f-a65b-d21fe96a405b