Message if blog domain name is not specified

src/freedombone

@@ -6955,7 +6955,8 @@ function install_blog {
       return
   fi
   if [ ! $FULLBLOG_DOMAIN_NAME ]; then
-      return
+      echo 'The blog domain name was not specified'
+      exit 5062
   fi
 
   if [ ! -d /var/www/$FULLBLOG_DOMAIN_NAME ]; then