It looks like the files xsrc/external/mit/xkeyboard-config/dist/rules/*.xml aren't being processed properly and still contain intltool placeholder underscores:
...
<_shortDescription>apl</_shortDescription>
<_description>APL</_description>
...
This breaks a bunch of desktop environment keyboard settings applications.
OpenBSD's Makefile for xkeyboard-config/rules does this:
sed -e 's,<_,<,g' -e 's,</_,</,g' ${XKB_DIR}/${XKB_SUBDIR}/
base.xml.in > $@
sed -e 's,<_,<,g' -e 's,</_,</,g' ${XKB_DIR}/${XKB_SUBDIR}/
evdev.xml.in > $@
A fix for this should ideally be pulled up to all supported releases since this is important for desktop users.
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youri