[groff] 04/14: [ms]: Document HD hook as a Berkeley extension.

[G. Branden Robinson]

gbranden pushed a commit to branch master
in repository groff.

commit 11532bdde4c488d5651f8f6a65d279a38de970b1
Author: G. Branden Robinson <g.branden.robinson@gmail.com>
AuthorDate: Mon Jul 12 04:36:26 2021 +1000

    [ms]: Document HD hook as a Berkeley extension.
---
 doc/groff.texi      | 6 +++---
 doc/ms.ms           | 6 +++++-
 tmac/groff_ms.7.man | 6 +++++-
 3 files changed, 13 insertions(+), 5 deletions(-)

diff --git a/doc/groff.texi b/doc/groff.texi
index b1b8897..62c5691 100644
--- a/doc/groff.texi
+++ b/doc/groff.texi
@@ -3954,9 +3954,9 @@ be written, and @code{BT} (``bottom trap'') when the 
footer is to be.
 The @code{groff} trap that @file{ms} sets up to process the header also
 calls the (normally undefined) @code{HD} macro after @code{PT}; you can
 define @code{HD} if you need additional processing after printing the
-header (for example, to draw a line below it).  Any such macros you
-(re)define must implement any desired specialization for odd-, even-, or
-first-numbered pages.
+header (for example, to draw a line below it).  The @code{HD} hook is a
+Berkeley extension.  Any such macros you (re)define must implement any
+desired specialization for odd-, even-, or first-numbered pages.
 
 @c ---------------------------------------------------------------------
 
diff --git a/doc/ms.ms b/doc/ms.ms
index c13de29..4ceadc7 100644
--- a/doc/ms.ms
+++ b/doc/ms.ms
@@ -2494,7 +2494,7 @@ and
 when the footer is to be.
 .
 The
-.I groff
+.I roff
 trap that
 .I ms
 sets up to process the header also calls the
@@ -2508,6 +2508,10 @@ if you need additional processing after printing the 
header
 (for example,
 to draw a line below it).
 .
+The
+.CW HD
+hook is a Berkeley extension.
+.
 Any such macros you (re)define must implement any desired specialization
 for odd-,
 even-,
diff --git a/tmac/groff_ms.7.man b/tmac/groff_ms.7.man
index 62be54d..beccfff 100644
--- a/tmac/groff_ms.7.man
+++ b/tmac/groff_ms.7.man
@@ -1531,7 +1531,7 @@ and
 when the footer is to be.
 .
 The
-.I groff
+.I roff
 trap that
 .I ms
 sets up to process the header also calls the
@@ -1543,6 +1543,10 @@ you can define
 .B .HD
 if you need additional processing after printing the header.
 .
+The
+.B HD
+hook is a Berkeley extension.
+.
 Any such macros you (re)define must implement any desired specialization
 for odd-,
 even-,