[gtkmm/gtkmm-3-24: 5/5] Merge branch 'wip/dboles/filefilter-docs' into 'gtkmm-3-24'

[Daniel Boles <dboles src gnome org>]

commit fd28f6586273ab1d6676be11fb6ae82417d7867a
Merge: 41d1b572 bff474af
Author: Daniel Boles <dboles src gmail com>
Date:   Mon Jan 7 18:09:24 2019 +0000

    Merge branch 'wip/dboles/filefilter-docs' into 'gtkmm-3-24'
    
    FileFilter: Add missing custom docs; don't mention unwrapped function; improve formatting
    
    See merge request GNOME/gtkmm!12

 gtk/src/filefilter.hg | 49 +++++++++++++++++++++++++++++++++++++++----------
 1 file changed, 39 insertions(+), 10 deletions(-)
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