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[groff] 07/10: groff_man*(7): Identify SB origin in description.

From: G. Branden Robinson
Subject: [groff] 07/10: groff_man*(7): Identify SB origin in description.
Date: Mon, 19 Dec 2022 21:50:50 -0500 (EST)

gbranden pushed a commit to branch master
in repository groff.

commit 9f0fd074b1db77422f3a9af3789d758f72017861
Author: G. Branden Robinson <>
AuthorDate: Mon Dec 19 12:16:30 2022 -0600

    groff_man*(7): Identify SB origin in description.
    I've tracked down the source of this "deviation" from V7 man to my
    I had a look at unarchived tape distributions of SunOS 3.5 (January
    1988) and SunOS 4.0 (December 1988).  The former does not define the
    macro and there are no occurrences in its man pages.
    The latter does define it, and there are ~2,113 occurrences.
    There were no SunOS releases between these two, though my guess is that
    SunOS 4 was under development for some time prior to the 3.5 release.
    According to Wikipedia, version 4 featured "[a] new virtual memory
    system, dynamic linking, automounter, System V STREAMS I/O, [and]
    Sun386i support."
 tmac/ | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tmac/ b/tmac/
index de7db409b..1fbefe90f 100644
--- a/tmac/
+++ b/tmac/
@@ -1654,6 +1654,8 @@ text on the next line,
 which can be further formatted with a macro,
 is set smaller and in bold.
+This macro is an extension introduced in SunOS\~4.0.

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