bash_aliases: cs: properly handle args with spaces

bash_aliases

@@ -156,7 +156,9 @@ if [ -e /bin/cygwin1.dll ]; then
     {
         while [ "$1" != "" ]
         do
-            (cd $(dirname "$1"); HOME='' cygstart $(basename "$1"))
+            dn=$(dirname "$1")
+            bn=$(basename "$1")
+            (cd "$dn"; HOME='' cygstart "$bn")
             shift
         done
     }