Update up()

zshrc

@@ -139,14 +139,18 @@ autoload mkmdir
 autoload pw
 autoload mkcmod
 
-# Go up n directories (saves me from having to type ../ ad # nauseum)
+# Go up $1 directories, where $1 is an integer (saves me from having to type ../
+# ad nauseum)
 function up {
     if [[ -z $1 ]]; then
         pushd ..
     else
-        updirs=()
-        for (( i=0; $i < $1; i++ )); do updirs+='..' done
-        pushd ${(j./.)updirs}
+        local updir=''
+        for (( i=0; $i < $1; i++ ))
+        do
+            updir="../$updir"
+        done
+        pushd $updir
     fi
 }