Add groff/troff to the textproc tools entry.

Requested/reviewed by:	dds
Suggested by:		Pedro <pfgshield-freebsd@yahoo.com> (via dds)

en/projects/ideas/ideas.xml

@@ -15,7 +15,7 @@ Ideas//EN"
 <ideas>
   <cvs:keywords xmlns:cvs="http://www.FreeBSD.org/XML/CVS" version="1.0">
     <cvs:keyword name="freebsd">
-      $FreeBSD: www/en/projects/ideas/ideas.xml,v 1.84 2008/04/08 06:18:59 yar Exp $
+      $FreeBSD: www/en/projects/ideas/ideas.xml,v 1.85 2008/04/08 10:44:33 jkoshy Exp $
     </cvs:keyword>
   </cvs:keywords>
 
@@ -1744,7 +1744,8 @@ New tests must be created; existing tests must be completed and updated.
 <p>Create/port BSD-licensed versions of one or more of the text processing
    tools that are currently missing from the FreeBSD distribution:
    <strong>sort</strong>,
-   <strong>diff</strong>, and the
+   <strong>diff</strong>,
+   <strong>groff/troff</strong> and the
    <strong>grep</strong> family.
    Licensed versions of some or all of these tools are already included
    in OpenBSD, so this task involves more porting and feature completion
@@ -1752,6 +1753,14 @@ New tests must be created; existing tests must be completed and updated.
    Emphasis should be placed on performance, standards-compliance, and support
    for handling wide character sets.
 </p>
+<p>Regarding groff/troff, there exist the <a
+   href="http://heirloom.sourceforge.net/doctools.html">OpenSolaris
+   versions</a> at SourceForge which at least do not come with a viral license
+   like the current GNU versions we use. Additionally this implementation has
+   support for common vector fonts and unicode. If those utilities are
+   option-compatible or not has to be analyzed. A port of this is already
+   available as textproc/heirloom-doctools.
+</p>
 <p><strong>Requirements</strong>:</p>
 <ul>
  <li>Knowledge of C.</li>