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 <cb@256bit.org>
Co-authored-by: Illia Bobyr <illia.bobyr@gmail.com>
diff --git a/src/auto/configure b/src/auto/configure
index acc844c..b86b391 100755
--- a/src/auto/configure
+++ b/src/auto/configure
@@ -8102,7 +8102,7 @@
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"