pkg/54970: multimedia/ffmpeg4 fails to build due to mailing-list-faq.html being missing from PLIST

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>Number:         54970
>Category:       pkg
>Synopsis:       multimedia/ffmpeg4 fails to build due to mailing-list-faq.html being missing from PLIST
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    pkg-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sun Feb 16 16:35:00 +0000 2020
>Originator:     Dean Matzkov
>Release:        2019Q4
>Organization:
>Environment:
>Description:
multimedia/ffmpeg4 fails to build when `doc' option is set due to `+${PLIST.doc}share/doc/ffmpeg4/mailing-list-faq.html' being missing from the PLIST file.
>How-To-Repeat:
$ cd multimedia/ffmpeg4
$ PKG_OPTIONS.ffmpeg4+=" doc" make install
>Fix:
Add the aforementioned `mailing-list-faq.html' file to the PLIST.