[Groff] New request `writec'

[Werner LEMBERG]

In analogy to `tmc' I've added `writec' which is similar to the
`write' request but without emitting a final newline.


    Werner


PS: The example of Sigfrid can finally be solved in a satisfactory
    way (see below)

======================================================================

.open TEST test.txt
.
.de title
.  box tit
..
.
.de /title
.  br
.  box
.  tit
.  asciify tit
.  chop tit
.  writec TEST title: \"
.  writem TEST tit
.  write TEST " ... \\n[PN]
..
.
.de person
.  box per
..
.
.de /person
.  br
.  box
.  per
.  asciify per
.  chop per
.  writec TEST person: \"
.  writem TEST per
.  write TEST " ... \\n[PN]
..
.
.LP
The
.title
.person
Kåren Ludvigsdatter Rosenkrantz
./person
Prayer book
./title
contains a
.title
Book of hours
./title
and a
.title
Calendar
./title