Docs: Correct documentation for `customize_controls_head` hook and `_customizer_mobile_viewport_meta()` function.

Follow-up to [48412].

See #47369.
Built from https://develop.svn.wordpress.org/trunk@48420


git-svn-id: http://core.svn.wordpress.org/trunk@48189 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/customize.php

@@ -170,7 +170,7 @@ do_action( 'customize_controls_print_styles' );
 do_action( 'customize_controls_print_scripts' );
 
 /**
- * Fires when Customizer control scripts are printed.
+ * Fires in head section of Customizer controls.
  *
  * @since 5.5.0
  */

wp-admin/includes/misc.php

@@ -1027,21 +1027,26 @@ function wp_admin_viewport_meta() {
 	 * @param string $viewport_meta The viewport meta.
 	 */
 	$viewport_meta = apply_filters( 'admin_viewport_meta', 'width=device-width,initial-scale=1.0' );
+
 	if ( empty( $viewport_meta ) ) {
 		return;
 	}
+
 	echo '<meta name="viewport" content="' . esc_attr( $viewport_meta ) . '">';
 }
 
 /**
- * Viewport meta for mobile in customize.
+ * Adds viewport meta for mobile in Customizer.
  *
  * Hooked to the {@see 'admin_viewport_meta'} filter.
  *
  * @since 5.5.0
+ *
+ * @param string $viewport_meta The viewport meta.
+ * @return string Filtered viewport meta.
  */
-function _customizer_mobile_viewport_meta( $content ) {
-	return trim( $content, ',' ) . ',minimum-scale=0.5,maximum-scale=1.2';
+function _customizer_mobile_viewport_meta( $viewport_meta ) {
+	return trim( $viewport_meta, ',' ) . ',minimum-scale=0.5,maximum-scale=1.2';
 }
 
 /**

wp-includes/version.php

@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.5-beta1-48419';
+$wp_version = '5.5-beta1-48420';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.