Commit: patch 9.0.1966: configure prints stray 6 when checking libruby

[Christian Brabandt]

patch 9.0.1966: configure prints stray 6 when checking libruby

Commit: https://github.com/vim/vim/commit/e379e21ddc2dc12abea9dcfd0708e27788bb568c
Author: Illia Bobyr <illia...@gmail.com>
Date: Sat Sep 30 22:59:27 2023 +0200

patch 9.0.1966: configure prints stray 6 when checking libruby

Problem: configure prints stray 6 when checking libruby
Solution: redirect stdout to dev/null

configure: Do not print "6" when checking for libruby

`expr` will print the matched string length to the standard output.
Current `configure` output looks like this:

```
checking Ruby header files... /usr/include/ruby-3.1.0
6
```

The script really only cares about `expr` exit code.

closes: #13234

Signed-off-by: Christian Brabandt <c...@256bit.org>
Co-authored-by: Illia Bobyr <illia...@gmail.com>

diff --git a/src/auto/configure b/src/auto/configure
index acc844c89..b86b3912e 100755
--- a/src/auto/configure
+++ b/src/auto/configure
@@ -8102,7 +8102,7 @@ printf "%s
" "$rubyhdrdir" >&6; }
librubyarg=`$vi_cv_path_ruby -r rbconfig -e "print $ruby_rbconfig.expand($ruby_rbconfig::CONFIG['LIBRUBYARG'])"`
librubya=`$vi_cv_path_ruby -r rbconfig -e "print $ruby_rbconfig.expand($ruby_rbconfig::CONFIG['LIBRUBY_A'])"`
rubylibdir=`$vi_cv_path_ruby -r rbconfig -e "print $ruby_rbconfig.expand($ruby_rbconfig::CONFIG['libdir'])"`
- if test -f "$rubylibdir/$librubya" || expr "$librubyarg" : "-lruby"; then
+ if test -f "$rubylibdir/$librubya" || expr "$librubyarg" : "-lruby" >/dev/null; then
RUBY_LIBS="$RUBY_LIBS -L$rubylibdir"
elif test "$librubyarg" = "libruby.a"; then
librubyarg="-lruby"
diff --git a/src/configure.ac b/src/configure.ac
index 4b2046dd5..dfbe51237 100644
--- a/src/configure.ac
+++ b/src/configure.ac
@@ -2077,7 +2077,7 @@ if test "$enable_rubyinterp" = "yes" -o "$enable_rubyinterp" = "dynamic"; then
librubyarg=`$vi_cv_path_ruby -r rbconfig -e "print $ruby_rbconfig.expand($ruby_rbconfig::CONFIG[['LIBRUBYARG']])"`
librubya=`$vi_cv_path_ruby -r rbconfig -e "print $ruby_rbconfig.expand($ruby_rbconfig::CONFIG[['LIBRUBY_A']])"`
rubylibdir=`$vi_cv_path_ruby -r rbconfig -e "print $ruby_rbconfig.expand($ruby_rbconfig::CONFIG[['libdir']])"`
- if test -f "$rubylibdir/$librubya" || expr "$librubyarg" : "-lruby"; then
+ if test -f "$rubylibdir/$librubya" || expr "$librubyarg" : "-lruby" >/dev/null; then
RUBY_LIBS="$RUBY_LIBS -L$rubylibdir"
elif test "$librubyarg" = "libruby.a"; then
dnl required on Mac OS 10.3 where libruby.a doesn't exist
diff --git a/src/version.c b/src/version.c
index 2371c3fa7..2c3c9f1bf 100644
--- a/src/version.c
+++ b/src/version.c
@@ -704,6 +704,8 @@ static char *(features[]) =

static int included_patches[] =
{ /* Add new patch number below this line */
+/**/
+ 1966,
/**/
1965,
/**/