Ticket #44651: filterable_excerpt_explanation.diff

wp-admin/includes/meta-boxes.php

@@ -661 +661 @@
 <label class="screen-reader-text" for="excerpt"><?php _e( 'Excerpt' ); ?></label><textarea rows="1" cols="40" name="excerpt" id="excerpt"><?php echo $post->post_excerpt; // textarea_escaped ?></textarea>
 <p>
 <?php
-        printf(
-                /* translators: %s: Codex URL */
-                __( 'Excerpts are optional hand-crafted summaries of your content that can be used in your theme. <a href="%s">Learn more about manual excerpts</a>.' ),
-                __( 'https://codex.wordpress.org/Excerpt' )
+        echo apply_filters( 'excerpt_explanation',
+                sprintf(
+                        /* translators: %s: Codex URL */
+                        __( 'Excerpts are optional hand-crafted summaries of your content that can be used in your theme. <a href="%s">Learn more about manual excerpts</a>.' ),
+                        __( 'https://codex.wordpress.org/Excerpt' )
+                )
         );
 ?>
 </p>