immediate ansi .6.2.0200
<CORE>
print the message to the screen while reading a file. This works
too while compiling, so you can whatch the interpretation/compilation
to go on. Some Forth-implementations won't even accept a ." message"
outside compile-mode while the (current) pfe does.
reference: p4_dot_paren in ../src/core.c:1964, export CI .(