Fix for $libdir check.

diff --git a/tools/wineinstall b/tools/wineinstall
index dda231a..8ea41ae 100755
--- a/tools/wineinstall
+++ b/tools/wineinstall
@@ -319,7 +319,7 @@
     # to our sucommand string
     if [ -f /etc/ld.so.conf ]
     then
-      if [ ! grep -qs "$libdir" /etc/ld.so.conf ]
+      if ! grep -qs "$libdir" /etc/ld.so.conf
       then {
 	echo
 	echo "$libdir doesn't exist in your /etc/ld.so.conf, it will be added"