Docs: Correct parameter description for `posts_join` filter.

Props anhskohbo.
Fixes #40991.
Built from https://develop.svn.wordpress.org/trunk@40912


git-svn-id: http://core.svn.wordpress.org/trunk@40762 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/class-wp-query.php

@@ -2405,7 +2405,7 @@ class WP_Query {
 			 *
 			 * @since 1.5.0
 			 *
-			 * @param string   $where The JOIN clause of the query.
+			 * @param string   $join  The JOIN clause of the query.
 			 * @param WP_Query &$this The WP_Query instance (passed by reference).
 			 */
 			$join = apply_filters_ref_array( 'posts_join', array( $join, &$this ) );

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.9-alpha-40911';
+$wp_version = '4.9-alpha-40912';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.