dnl ../doc/m4.texinfo:2553: Origin of test
translit(`GNUs not Unix', `A-Z')
dnl @result{}s not nix
translit(`GNUs not Unix', `a-z', `A-Z')
dnl @result{}GNUS NOT UNIX
translit(`GNUs not Unix', `A-Z', `z-a')
dnl @result{}tmfs not fnix