Add messages to update hooks

Closes #3506061

group.install

@@ -29,7 +29,7 @@ function group_update_10300(&$sandbox) {
   // Short-circuit the following updates if we are already on version 3.
   if (empty($group_content_type_configs)) {
     $state->set('group_update_10300_detected_legacy_version', FALSE);
-    return;
+    return t('Module was already on v3, skipping upgrade path.');
   }
   $state->set('group_update_10300_detected_legacy_version', TRUE);
 
@@ -227,7 +227,7 @@ function group_update_10300(&$sandbox) {
 function group_update_10301(&$sandbox) {
   // Short-circuit the update if we are already on version 3.
   if (!\Drupal::state()->get('group_update_10300_detected_legacy_version', FALSE)) {
-    return;
+    return t('Module was already on v3, skipping upgrade path.');
   }
 
   $definition_update_manager = \Drupal::entityDefinitionUpdateManager();
@@ -245,7 +245,7 @@ function group_update_10301(&$sandbox) {
 function group_update_10302(&$sandbox) {
   // Short-circuit the update if we are already on version 3.
   if (!\Drupal::state()->get('group_update_10300_detected_legacy_version', FALSE)) {
-    return;
+    return t('Module was already on v3, skipping upgrade path.');
   }
 
   $config_factory = \Drupal::configFactory();
@@ -318,7 +318,7 @@ function group_update_10304(&$sandbox) {
 
   // Previous updates ran with new state entry, do nothing.
   if (!is_null($state->get('group_update_10300_detected_legacy_version'))) {
-    return;
+    return t('State key was properly set before, skipping update.');
   }
 
   // Previous updates ran with old state entry, convert to new state entry.
@@ -333,7 +333,7 @@ function group_update_10304(&$sandbox) {
 function group_update_10305(&$sandbox) {
   // Short-circuit the update if we are already on version 3.
   if (!\Drupal::state()->get('group_update_10300_detected_legacy_version', FALSE)) {
-    return;
+    return t('Module was already on v3, skipping upgrade path.');
   }
 
   $definition_update_manager = \Drupal::entityDefinitionUpdateManager();