bin/54361: mandoc misinterprets gettytab.5 formatting directives

[he%NetBSD.org@localhost]

>Number:         54361
>Category:       bin
>Synopsis:       mandoc misinterprets gettytab.5 formatting directives
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    bin-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue Jul 09 10:35:00 +0000 2019
>Originator:     he%NetBSD.org@localhost
>Release:        NetBSD 8.1_RC1
>Organization:
	I Try
>Environment:
System: NetBSD smistad.uninett.no 8.1_RC1 NetBSD 8.1_RC1 (GENERIC) #1: Tue May 21 14:39:34 CEST 2019 he%smistad.uninett.no@localhost:/usr/obj/sys/arch/amd64/compile/GENERIC amd64
Architecture: x86_64
Machine: amd64
>Description:
	"man gettytab" displays

     cl        str               NULL Ta screen clear sequence

        for the formatting sequence

.It "cl str" Ta Dv NULL Ta
.No "screen clear sequence"

	Correspondingly,

.It "ds str" Ta So Li ^Y Sc Ta
.No "delayed suspend character"

	results in

     ds        str               `^Y' Ta delayed suspend character

	Doing "nroff -man gettytab.5 | less -s" does not show these
	formatting problems.

	BTW, this problem is also seen in 8.99.49.

>How-To-Repeat:
	Inspect "man gettytab" output.

>Fix:
	Sorry, none provided here (yet).