Add a "Tillage" log category.

modules/farm/farm_soil/farm_soil.install

@@ -63,3 +63,10 @@ function farm_soil_update_7000(&$sandbox) {
 function farm_soil_update_7001(&$sandbox) {
   module_enable(array('farm_soil_nrcs'));
 }
+
+/**
+ * Add the "Tillage" log category.
+ */
+function farm_soil_update_7002(&$sandbox) {
+  farm_log_categories_create(array('Tillage'));
+}

modules/farm/farm_soil/farm_soil.module

@@ -11,6 +11,6 @@ include_once 'farm_soil.features.inc';
  */
 function farm_soil_farm_log_categories() {
 
-  // Provide an "Soil" log category.
-  return array('Soil');
+  // Provide log categories: Soil, Tillage.
+  return array('Soil', 'Tillage');
 }