-.\" $Id: mandoc.1,v 1.256 2022/04/14 10:10:22 schwarze Exp $
+.\" $Id: mandoc.1,v 1.258 2022/04/28 16:21:09 schwarze Exp $
.\"
-.\" Copyright (c) 2012, 2014-2021 Ingo Schwarze <schwarze@openbsd.org>
+.\" Copyright (c) 2012, 2014-2022 Ingo Schwarze <schwarze@openbsd.org>
.\" Copyright (c) 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
.\"
.\" Permission to use, copy, modify, and distribute this software for any
.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
.\"
-.Dd $Mdocdate: April 14 2022 $
+.Dd $Mdocdate: April 28 2022 $
.Dt MANDOC 1
.Os
.Sh NAME
layout modifier has an unknown
.Ar font
argument.
+.It Sy "ignoring distance argument"
+.Pq roff
+In addition to the margin character, an
+.Ic \&mc
+request has a second argument supposed to represent a distance, but the
+.Nm
+implementation of
+.Ic \&mc
+always ignores the second argument.
.It Sy "odd number of characters in request"
.Pq roff
A
.Pq roff
The argument of the escape sequence \e$ is not a digit;
the escape sequence expands to the empty string.
+.It Sy "negative argument, using 0"
+.Pq roff
+A
+.Ic \&shift
+request has a negative argument
+or an argument that is negative due to integer overflow.
+Macro argument numbering remains unchanged.
.It Sy "NOT IMPLEMENTED: Bd -file"
.Pq mdoc
For security reasons, the
request is neither a single ASCII character
nor a single character escape sequence.
The request is ignored including all its arguments.
+.It Sy "skipping unusable escape sequence"
+.Pq roff
+The first argument of an
+.Ic mc
+request is neither a single ASCII character
+nor a single character escape sequence.
+All arguments are ignored and printing of a margin character is disabled.
.It Sy "missing manual name, using \(dq\(dq"
.Pq mdoc
The first call to