test_substitution: Fix failing test.

Revert the -r392190 change.  The original test was correct.  The CDR code
was actually returning an unititialized buffer.
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Merged revisions 398025 from http://svn.asterisk.org/svn/asterisk/branches/12


git-svn-id: http://svn.asterisk.org/svn/asterisk/trunk@398026 f38db490-d61c-443f-a65b-d21fe96a405b
Memory leak fix

ast_xmldoc_printable returns an allocated block that must be freed by the
caller.  Fixed manager.c and res_agi.c to stop leaking these results.

(closes issue ASTERISK-22395)
Reported by: Corey Farrell
Patches:
     manager-leaks-12.patch uploaded by coreyfarrell (license 5909)
     res_agi-xmldoc-leaks.patch uploaded by coreyfarrell (license 5909)
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Merged revisions 398060 from http://svn.asterisk.org/svn/asterisk/branches/1.8
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Merged revisions 398061 from http://svn.asterisk.org/svn/asterisk/branches/11
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Merged revisions 398062 from http://svn.asterisk.org/svn/asterisk/branches/12


git-svn-id: http://svn.asterisk.org/svn/asterisk/trunk@398063 f38db490-d61c-443f-a65b-d21fe96a405b
features_config: Don't require features.conf to be present for Asterisk to load

(closes issue ASTERISK-22426)
Reported by: Matt Jordan
Review: https://reviewboard.asterisk.org/r/2806/
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Merged revisions 398020 from http://svn.asterisk.org/svn/asterisk/branches/12


git-svn-id: http://svn.asterisk.org/svn/asterisk/trunk@398064 f38db490-d61c-443f-a65b-d21fe96a405b