Add to lib.common a new function not_configured()

Signed-off-by: Tuomo Soini <tis@foobar.fi>

Shorewall-core/lib.common

@@ -79,6 +79,15 @@ fatal_error() # $@ = Message
     exit 2
 }
 
+#
+# Not configured Error
+#
+not_configured() # $@ = Message
+{
+    echo "   ERROR: $@" >&2
+    exit 6
+}
+
 #
 # Get the Shorewall version of the passed script
 #