- address concern and point out that ports-mgmt/poudriere or

ports-mgmt/poudriere-devel need to be installed in order
  for poudriere(8) to be available.

PR:		194584
Differential Revision:	https://reviews.freebsd.org/D1057
Submitted by:	ngie
Reviewed by:	wblock,remko
Approved by:	wblock

en_US.ISO8859-1/books/handbook/ports/chapter.xml

@@ -1713,7 +1713,8 @@ Building new INDEX files... done.</screen>
 	jails, and from different port trees.  Custom configurations
 	for these combinations are called <emphasis>sets</emphasis>.
 	See the CUSTOMIZATION section of &man.poudriere.8; for
-	details.</para>
+	details after <package>ports-mgmt/poudriere</package>
+	or <package>ports-mgmt/poudriere-devel</package> is installed.</para>
 
       <para>The basic configuration shown here puts a single jail-,
 	port-, and set-specific <filename>make.conf</filename> in