I18N: Add context for Next/Previous strings in the jQuery UI datepicker.

Follow-up to [37849].

Props timse201, anupkankale.
Fixes #65005.

git-svn-id: https://develop.svn.wordpress.org/trunk@62188 602fd350-edb4-49c9-b593-d223f7449a82

Author: SergeyBiryukov

src/wp-includes/script-loader.php

@@ -2020,8 +2020,8 @@ function wp_localize_jquery_ui_datepicker() {
 			'currentText'     => __( 'Today' ),
 			'monthNames'      => array_values( $wp_locale->month ),
 			'monthNamesShort' => array_values( $wp_locale->month_abbrev ),
-			'nextText'        => __( 'Next' ),
-			'prevText'        => __( 'Previous' ),
+			'nextText'        => _x( 'Next', 'datepicker: navigate to next month' ),
+			'prevText'        => _x( 'Previous', 'datepicker: navigate to previous month' ),
 			'dayNames'        => array_values( $wp_locale->weekday ),
 			'dayNamesShort'   => array_values( $wp_locale->weekday_abbrev ),
 			'dayNamesMin'     => array_values( $wp_locale->weekday_initial ),