ALLLANG is long dead, garbage collect it.  Instead, make it possible to use DOC_LANG to specify which languages the doc/ is built for.
ALLLANG is long dead, garbage collect it.  Instead, make it possible
to use DOC_LANG to specify which languages the doc/ is built for.

Note: be aware that the DOC_LANG setting in /etc/make.conf will now
take the effect on "make release".  (This is probably the desired
behavior anyway.)

PR:		docs/42924

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase