Write file peculiars

[Leigh L. Klotz <KLOTZ @ MIT-MC>]

You have to use
 @M(M.MWrite Fileâ—Š)

to do this.  The "@" flag on M here means to "pretend the command
was called from a key-bound macro."  & Read Line calls fγ which
eventually decides whether to look at the rest of the command line
(as in M-X and inside programs) or to prompt and read.  I'm not sure
exactly why calling ^R Instant Extended Command didn't work, since presumably
it sets this flag in the macroing of the function you specify.

Leigh.