[groff] 20/21: groff(7): Fix grammar nit.

[G. Branden Robinson]

gbranden pushed a commit to branch master
in repository groff.

commit 39040997fa763dd65c53066dab650d53c70690df
Author: G. Branden Robinson <g.branden.robinson@gmail.com>
AuthorDate: Mon Jun 7 01:59:19 2021 +1000

    groff(7): Fix grammar nit.
---
 man/groff.7.man | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/man/groff.7.man b/man/groff.7.man
index e992e40..cb20dcc 100644
--- a/man/groff.7.man
+++ b/man/groff.7.man
@@ -5728,8 +5728,8 @@ covers the differences between the
 GNU
 .I troff \" GNU
 formatter,
-its device and font description file format,
-and its device-independent output format,
+its device and font description file formats,
+its device-independent output format,
 and those of AT&T
 .IR troff ,\" AT&T
 whose design it re-implements.