Ensure both parameters and the return for `has_shortcode()` are fully documented.

Props cais, SergeyBiryukov
See #31048.

Built from https://develop.svn.wordpress.org/trunk@31242


git-svn-id: http://core.svn.wordpress.org/trunk@31223 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/shortcodes.php

@@ -145,8 +145,10 @@ function shortcode_exists( $tag ) {
  * @since 3.6.0
  *
  * @global array $shortcode_tags
- * @param string $tag
- * @return boolean
+ *
+ * @param string $content Content to search for shortcodes.
+ * @param string $tag     Shortcode tag to check.
+ * @return bool Whether the passed content contains. the given shortcode.
  */
 function has_shortcode( $content, $tag ) {
 	if ( false === strpos( $content, '[' ) ) {

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.2-alpha-31241';
+$wp_version = '4.2-alpha-31242';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.