branch master updated: * doc/texinfo.tex (\need): End with a \penalty0 so that \safewhatsit and \dobreak do not remove negative skip, leading to excessive space before section heading. Report from Werner Lemberg.

[Gavin D. Smith]

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gavin pushed a commit to branch master
in repository texinfo.

The following commit(s) were added to refs/heads/master by this push:
     new efb13242e9 * doc/texinfo.tex (\need): End with a \penalty0 so that 
\safewhatsit and \dobreak do not remove negative skip, leading to excessive 
space before section heading.  Report from Werner Lemberg.
efb13242e9 is described below

commit efb13242e984b73e4fd10902be6fbc9dc0c9f841
Author: Gavin Smith <gavinsmith0123@gmail.com>
AuthorDate: Sat Aug 20 19:16:07 2022 +0100

    * doc/texinfo.tex (\need):
    End with a \penalty0 so that \safewhatsit and \dobreak do
    not remove negative skip, leading to excessive space before
    section heading.  Report from Werner Lemberg.
---
 ChangeLog       | 7 +++++++
 doc/texinfo.tex | 5 +++--
 2 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index b08deca40b..1dc16e0cc1 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2022-08-20  Gavin Smith  <gavinsmith0123@gmail.com>
+
+       * doc/texinfo.tex (\need):
+       End with a \penalty0 so that \safewhatsit and \dobreak do
+       not remove negative skip, leading to excessive space before
+       section heading.  Report from Werner Lemberg.
+
 2022-08-20  Gavin Smith  <gavinsmith0123@gmail.com>
 
        @U for ASCII chars again
diff --git a/doc/texinfo.tex b/doc/texinfo.tex
index 425ba82b31..7d00f0973e 100644
--- a/doc/texinfo.tex
+++ b/doc/texinfo.tex
@@ -3,7 +3,7 @@
 % Load plain if necessary, i.e., if running under initex.
 \expandafter\ifx\csname fmtname\endcsname\relax\input plain\fi
 %
-\def\texinfoversion{2022-08-20.16}
+\def\texinfoversion{2022-08-20.18}
 %
 % Copyright 1985, 1986, 1988, 1990-2022 Free Software Foundation, Inc.
 %
@@ -739,7 +739,8 @@ where each line of input produces a line of output.}
     \vskip0pt plus -\dimen0
     \vskip \dimen0
     \penalty9999
-    \vskip -\dimen0\relax
+    \vskip -\dimen0
+    \penalty0\relax % this hides the above glue from \safewhatsit and \dobreak
   \fi
 }