[ticket/15735] Add search_results_content_after template event

Needed for extensions who adds information at the end of the message
(such as moderator messages).

PHPBB3-15735

phpBB/docs/events.md

@@ -1889,6 +1889,13 @@ search_body_search_query_prepend
 * Since: 3.1.7-RC1
 * Purpose: Put content at the top of the search query fields set
 
+search_results_content_after
+===
+* Locations:
+    + styles/prosilver/template/search_results.html
+* Since: 3.2.4-RC1
+* Purpose: Add content after the message content in search results
+
 search_results_header_after
 ===
 * Locations:

phpBB/styles/prosilver/template/search_results.html

@@ -194,6 +194,7 @@
 		<div class="postbody">
 			<h3><a href="{searchresults.U_VIEW_POST}">{searchresults.POST_SUBJECT}</a></h3>
 			<div class="content">{searchresults.MESSAGE}</div>
+			<!-- EVENT search_results_content_after -->
 		</div>
 	<!-- ENDIF -->