Create and leverage global error functions

usr/local/share/bastille/limits.sh

@@ -29,11 +29,11 @@
 # OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-. /usr/local/share/bastille/colors.pre.sh
+. /usr/local/share/bastille/common.sh
 . /usr/local/etc/bastille/bastille.conf
 
 usage() {
-    echo -e "${COLOR_RED}Usage: bastille limits TARGET option value${COLOR_RESET}"
+    error_notify "Usage: bastille limits TARGET option value"
     echo -e "Example: bastille limits JAILNAME memoryuse 1G"
     exit 1
 }