[Libreoffice] [REVIEW][3-4] fdo#44078 boxes shown for glyph fallback with DejaVu Sans ExtraLight (he/ar)

[Caolán McNamara]

https://bugs.freedesktop.org/show_bug.cgi?id=44078

http://cgit.freedesktop.org/libreoffice/core/commit/?h=libreoffice-3-5&id=25b90909a7a22f6900abbe9df12570a24e528c9a

I've done a bit more work to fix more of the root problem in master, but
the above is a minimal and should-be-safe workaround to fix the
practical problem where a font like DejaVu Sans ExtraLight has two
aliases (fc-list -v DejaVu Sans Light) of "DejaVu Sans" and "DejaVu Sans
Light" and our efforts to present a localized name to users and
canonical name to fontconfig ends in tears as "DejaVu Sans" gets mapped
to "DejaVu Sans Light" under some circumstances so if DejaVu Sans is
suggested as a font suitable for glyph fallback then DejaVu Sans Light
gets used, and it has less glyphs than DejaVu Sans, hence the boxes.

C.