desktop/xmonad: Fixed chown syntax

Signed-off-by: Robby Workman <rworkman@slackbuilds.org>

Signed-off-by: Willy Sudiarto Raharjo <willysr@slackbuilds.org>

desktop/xmonad/xmonad.SlackBuild

@@ -113,7 +113,7 @@ rm -rf $PKG/usr/share
 mkdir -p $PKG/usr/man/man1
 cp man/xmonad.1 $PKG/usr/man/man1/xmonad.1
 chmod 644 $PKG/usr/man/man1/xmonad.1
-chown root.root $PKG/usr/man/man1/xmonad.1
+chown root:root $PKG/usr/man/man1/xmonad.1
 
 # Add X startup script
 mkdir -p $PKG/etc/X11/xinit