===================================================================
RCS file: /cvs/mandoc/regress/roff/cond/register.in,v
retrieving revision 1.1
retrieving revision 1.3
diff -u -p -r1.1 -r1.3
--- mandoc/regress/roff/cond/register.in	2017/02/08 03:03:19	1.1
+++ mandoc/regress/roff/cond/register.in	2019/02/06 21:11:44	1.3
@@ -1,4 +1,5 @@
-.TH REGISTER 1 "May 31, 2015" OpenBSD
+.\" $OpenBSD: register.in,v 1.3 2019/02/06 21:11:44 schwarze Exp $
+.TH REGISTER 1 "February 6, 2019"
 .SH NAME
 register \- conditional testing whether a register is defined
 .SH DESCRIPTION
@@ -9,3 +10,11 @@ register \- conditional testing whether a register is 
 .ie rmyreg now defined
 .el OOPS
 .if !rmyreg OOPS
+.PP
+identifier + identifier:
+.ie rmyreg	myreg is defined
+.el OOPS
+.PP
+escape sequence after identifier:
+.ie rmyreg\(enmyreg is defined
+.el OOPS