===================================================================
RCS file: /cvs/mandoc/mandoc.1,v
retrieving revision 1.126
retrieving revision 1.127
diff -u -p -r1.126 -r1.127
--- mandoc/mandoc.1	2014/11/30 02:36:38	1.126
+++ mandoc/mandoc.1	2014/11/30 05:29:00	1.127
@@ -1,4 +1,4 @@
-.\"	$Id: mandoc.1,v 1.126 2014/11/30 02:36:38 schwarze Exp $
+.\"	$Id: mandoc.1,v 1.127 2014/11/30 05:29:00 schwarze Exp $
 .\"
 .\" Copyright (c) 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
 .\" Copyright (c) 2012, 2014 Ingo Schwarze <schwarze@openbsd.org>
@@ -1054,6 +1054,14 @@ argument is invalid.
 The default font
 .Cm \efR
 is used instead.
+.It Sy "nothing follows prefix"
+.Pq mdoc
+A
+.Ic \&Pf
+macro has no argument, or only one argument and no macro follows
+on the same input line.
+This defeats its purpose; in particular, spacing is not suppressed
+before the text or macros following on the next input line.
 .It Sy "missing -std argument, adding it"
 .Pq mdoc
 An