Docs: Use a third-person singular verb for the `get_the_excerpt()` DocBlock summary.

See #32246.

Built from https://develop.svn.wordpress.org/trunk@36942


git-svn-id: http://core.svn.wordpress.org/trunk@36910 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/post-template.php

@@ -354,7 +354,7 @@ function the_excerpt() {
 }
 
 /**
- * Retrieve the post excerpt.
+ * Retrieves the post excerpt.
  *
  * @since 0.71
  * @since 4.5.0 Introduced the `$post` parameter.

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.5-beta3-36941';
+$wp_version = '4.5-beta3-36942';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.