Use backticks when describing the `value_field` parameter, er, argument.

See [32020].
Built from https://develop.svn.wordpress.org/trunk@32021


git-svn-id: http://core.svn.wordpress.org/trunk@32000 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/category-template.php

@@ -293,7 +293,7 @@ function category_description( $category = 0 ) {
  * the 'depth' argument.
  *
  * @since 2.1.0
- * @since 4.2.0 Introduced the `value_field' argument.
+ * @since 4.2.0 Introduced the `value_field` argument.
  *
  * @param string|array $args {
  *     Optional. Array or string of arguments to generate a categories drop-down element.

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.2-beta4-32020';
+$wp_version = '4.2-beta4-32021';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.