If you do a "make all" when building Asterisk the xml documentation
produced will be missing certain AMI events where their
documentation is located not at the top of the c source file but
embedded further down next to the event's manager_event()
registration call. See main/manager_mwi.c for an example.
"make full" does produce the correct documentation so we're changing
it in the build script. A separate commit/issue will address the
problem with "make all".
ASTERISK-28507
Reported by: David Lee
Change-Id: I4a22635d6eef99eacecc0efb69e28360eebdb86c