-.\" $Id: roff.7,v 1.85 2017/06/06 15:03:35 schwarze Exp $
+.\" $Id: roff.7,v 1.87 2017/06/10 16:32:27 schwarze Exp $
.\"
.\" Copyright (c) 2010, 2011, 2012 Kristaps Dzonsons <kristaps@bsd.lv>
.\" Copyright (c) 2010,2011,2013-2015,2017 Ingo Schwarze <schwarze@openbsd.org>
.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
.\"
-.Dd $Mdocdate: June 6 2017 $
+.Dd $Mdocdate: June 10 2017 $
.Dt ROFF 7
.Os
.Sh NAME
.Ar N
defaults to 1.
An argument of 0 or less ends centering.
-Currently, high level macros abort certering.
+Currently, high level macros abort centering.
.It Ic \&cf Ar filename
Output the contents of a file.
Ignored because insecure.
Remove a request, macro or string.
.It Ic \&rn Ar oldname newname
Rename a request, macro, diversion, or string.
-Currently unsupported.
+In
+.Xr mandoc 1 ,
+user-defined macros,
+.Xr mdoc 7
+and
+.Xr man 7
+macros, and user-defined strings can be renamed, but renaming of
+predefined strings and of
+.Nm
+requests is not supported, and diversions are not implemented at all.
.It Ic \&rnn Ar oldname newname
Rename a number register.
Currently unsupported.
.Ic && )
.It Ic \&:
logical or (corresponds to C
-.Ic \&|| )
+.Ic || )
.It Ic <?
minimum (not available in C)
.It Ic >?