Fix autoupdate directory change problem

zshrc

@@ -18,7 +18,7 @@ RC_PATH=$(dirname "$(readlink -f ${(%):-%x})")
 
 # Mise à jour automatique à partir du repo distant
 
-PWD=`pwd`
+CUR_DIR=`pwd`
 cd $RC_PATH
 
 # In case the network is down, don't lock the terminal
@@ -39,13 +39,13 @@ elif $(echo "$git_st" | grep '^## .*behind' &> /dev/null); then
     if [ "$line" = Y ] || [ "$line" = y ]; then
         git pull --rebase --stat origin master
         $RC_PATH/install.sh
-        cd $PWD
+        cd $CUR_DIR
         source $HOME/.zshrc
         return
     fi
 fi
 
-cd $PWD
+cd $CUR_DIR
 
 
 # Configuration for virtualenv