Merged revisions 168737 via svnmerge from

Merged revisions 168737 via svnmerge from
https://origsvn.digium.com/svn/asterisk/trunk

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  r168737 | murf | 2009-01-15 13:54:59 -0700 (Thu, 15 Jan 2009) | 16 lines

  This patch allows null args in ast_expr2 func calls, and fixes commas being converted to pipes, which was 1.4 type stuff.

  If the user says count=ENUMLOOKUP(${EXTEN},ALL,c,,enum.mydomain.tld);

  then it won't complain about the empty arg (c,,...) and fabled's patch
  won't let it swap the commas for pipes.

  Ran it thru my dialplan and no complaints.

  (closes issue #14169)
  Reported by: fabled
  Patches:
        function-argument-separator-fix.diff uploaded by fabled (license 448)
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git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.6.0@168738 65c4cc65-6c06-0410-ace0-fbb531ad65f3