I18N: Merge duplicate "Add Comment" strings.

Props ramiy.
Fixes #47246.
Built from https://develop.svn.wordpress.org/trunk@45441


git-svn-id: http://core.svn.wordpress.org/trunk@45252 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/includes/meta-boxes.php

@@ -804,7 +804,7 @@ function post_comment_meta_box_thead( $result ) {
 function post_comment_meta_box( $post ) {
 	wp_nonce_field( 'get-comments', 'add_comment_nonce', false );
 	?>
-	<p class="hide-if-no-js" id="add-new-comment"><button type="button" class="button" onclick="window.commentReply && commentReply.addcomment(<?php echo $post->ID; ?>);"><?php _e( 'Add comment' ); ?></button></p>
+	<p class="hide-if-no-js" id="add-new-comment"><button type="button" class="button" onclick="window.commentReply && commentReply.addcomment(<?php echo $post->ID; ?>);"><?php _e( 'Add Comment' ); ?></button></p>
 	<?php
 
 	$total         = get_comments(

wp-includes/version.php

@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.3-alpha-45440';
+$wp_version = '5.3-alpha-45441';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.