===================================================================
RCS file: /cvs/mandoc/mandoc.1,v
retrieving revision 1.142
retrieving revision 1.143
diff -u -p -r1.142 -r1.143
--- mandoc/mandoc.1	2015/02/04 16:38:56	1.142
+++ mandoc/mandoc.1	2015/02/04 18:03:47	1.143
@@ -1,4 +1,4 @@
-.\"	$Id: mandoc.1,v 1.142 2015/02/04 16:38:56 schwarze Exp $
+.\"	$Id: mandoc.1,v 1.143 2015/02/04 18:03:47 schwarze Exp $
 .\"
 .\" Copyright (c) 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
 .\" Copyright (c) 2012, 2014, 2015 Ingo Schwarze <schwarze@openbsd.org>
@@ -1091,6 +1091,14 @@ macro has no argument, or only one argument and no mac
 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 "empty reference block"
+.Pq mdoc
+An
+.Ic \&Rs
+macro is immediately followed by an
+.Ic \&Re
+macro on the next input line.
+Such an empty block does not produce any output.
 .It Sy "missing -std argument, adding it"
 .Pq mdoc
 An
@@ -1595,6 +1603,7 @@ An
 .Ic \&Ek ,
 .Ic \&El ,
 .Ic \&Re ,
+.Ic \&Rs ,
 or
 .Ic \&Ud
 macro, an