Fix timing error in generate-mo-files.sh

generate-mo-files.sh

@@ -32,7 +32,7 @@ fi
 if [ ! -d launchpad ]; then
     echo "Checking out the launchpad .po files"
     bzr checkout lp:~mahara-lang/mahara-manual/${version}_STABLE-export launchpad || exit 1
-elif [ -z $(find launchpad/.bzr/checkout/lock -type d -mmin -480 |head -1) ]; then
+elif [ -z $(find launchpad/.bzr/checkout/lock -type d -mmin 120 |head -1) ]; then
     # Re-fetch from Launchpad if more than eight hours old, so that it
     # skips during a dev or testing session, but a daily cron always fetches.
     echo "Updating .po collection from launchpad"