Comments: Further improve text of initial comment.

In [37888], the comment text was initially updated, however an opportunity to make the text less trivializing of actions that users will take was missed. To quote Helen Hou-Sandi: "It's important not to trivialize actions that are perfectly reasonable for a user to find tricky (where to go to log in is not exactly intuitive, even with the rewrites we have now)."

The text of the comment now reads:

> Hi, this is a comment.
> To get started with moderating, editing, and deleting comments, please visit the Comments screen in the dashboard.
> Commenter avatars come from <a href="https://gravatar.com">Gravatar</a>.

Some interesting reading on the topic of "Simple" and "Easy" and how they relate to software development can be found at http://andrewspittle.com/2012/01/31/avoiding-easy/ and written by andrewspittle.

Props helen.
Fixes #36702.


Built from https://develop.svn.wordpress.org/trunk@37921


git-svn-id: http://core.svn.wordpress.org/trunk@37862 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/includes/upgrade.php

@@ -195,7 +195,7 @@ function wp_install_defaults( $user_id ) {
 	$first_comment_email = 'wapuu@wordpress.example';
 	$first_comment_url = 'https://wordpress.org/';
 	$first_comment = __( 'Hi, this is a comment.
-To moderate comments, just log in. There you will have the option to edit or delete them.
+To get started with moderating, editing, and deleting comments, please visit the Comments screen in the dashboard.
 Commenter avatars come from <a href="https://gravatar.com">Gravatar</a>.' );
 	if ( is_multisite() ) {
 		$first_comment_author = get_site_option( 'first_comment_author', $first_comment_author );

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.6-alpha-37920';
+$wp_version = '4.6-alpha-37921';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.