Merge "envsetup: Show error when supplied dir isn't present with mmm"

                case $DIR in

                  showcommands | snod | dist | *=*) ARGS="$ARGS $DIR";;

                  GET-INSTALL-PATH) GET_INSTALL_PATH=$DIR;;

                  *) echo "No Android.mk in $DIR."; return 1;;

                  *) if [ -d $DIR ]; then

                         echo "No Android.mk in $DIR.";

                     else

                         echo "Couldn't locate the directory $DIR";

                     fi

                     return 1;;

                esac

            fi

        done