better output to follow module loop progression

Author: gmella

update_modules.sh

@@ -5,7 +5,8 @@ set -e
 
 for mod in jmcs jmal oitools oiexplorer-core aspro aspro-conf smprun smprsc smptest oimaging oimaging-uws-server mfgui oiexplorer sclgui # oiexplorer-existdb
 do
+  echo "Updating $mod module ..."
   cd $mod
   git pull
-  cd -
+  cd - > /dev/null
 done