possible fix for = in \hyphenation (and \compoundhyphenmode to control it)

source/texk/web2c/luatexdir/lang/texlang.w

source/texk/web2c/luatexdir/lua/ltexiolib.c

source/texk/web2c/luatexdir/luatex_svnversion.h

source/texk/web2c/luatexdir/tex/commands.w

source/texk/web2c/luatexdir/tex/dumpdata.w

source/texk/web2c/luatexdir/tex/equivalents.h

source/texk/web2c/luatexdir/tex/maincontrol.w