Update from Gnulib

This incorporates:
2019-10-11 Simplify and regularize regex use of ‘assert’
2019-10-09 regex: omit debug assignment when not debugging
2019-10-09 regex: tell compiler there’s at most 256 arcs out
2019-10-09 regex: simplify by assuming C99
2019-10-09 regex: avoid copying of uninitialized storage
2019-09-29 fbufmode: Fix compilation error on glibc >= 2.28 systems
2019-09-28 Update comments that refer to POSIX
2019-09-23 Update URLs and associated text
* doc/misc/texinfo.tex, lib/open.c, lib/regcomp.c:
* lib/regex_internal.c, lib/regex_internal.h, lib/regexec.c:
* lib/stdio-impl.h:
Copy from Gnulib.

1 files changed, 9 insertions, 4 deletions

diff --git a/doc/misc/texinfo.tex b/doc/misc/texinfo.tex
index df43c1e26ed..1ea515b2ae4 100644
--- a/doc/misc/texinfo.tex
+++ b/doc/misc/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{2019-09-20.22}
+\def\texinfoversion{2019-09-24.13}
 %
 % Copyright 1985, 1986, 1988, 1990-2019 Free Software Foundation, Inc.
 %
@@ -3099,11 +3099,16 @@ end
 \def\wordbefore{before}
 \def\wordnone{none}
 
-% Allow a ragged right output to aid breaking long URL's.  Putting stretch in
-% between characters of the URL doesn't look good.
+% Allow a ragged right output to aid breaking long URL's.  There can
+% be a break at the \allowbreak with no extra glue (if the existing stretch in
+% the line is sufficent), a break at the \penalty100 with extra glue added
+% at the end of the line, or no break at all here.
+%   Changing the value of the penalty and/or the amount of stretch affects how
+% preferrable one choice is over the other.
 \def\urefallowbreak{%
-  \hskip 0pt plus 4 em\relax
   \allowbreak
+  \hskip 0pt plus 4 em\relax
+  \penalty100
   \hskip 0pt plus -4 em\relax
 }