Setup: Use "Username" instead of "User Name".

Props thisisit.
Fixes #35850.
Built from https://develop.svn.wordpress.org/trunk@36544


git-svn-id: http://core.svn.wordpress.org/trunk@36511 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/setup-config.php

@@ -191,7 +191,7 @@ switch($step) {
 			<td><?php _e( 'The name of the database you want to run WP in.' ); ?></td>
 		</tr>
 		<tr>
-			<th scope="row"><label for="uname"><?php _e( 'User Name' ); ?></label></th>
+			<th scope="row"><label for="uname"><?php _e( 'Username' ); ?></label></th>
 			<td><input name="uname" id="uname" type="text" size="25" value="<?php echo htmlspecialchars( _x( 'username', 'example username' ), ENT_QUOTES ); ?>" /></td>
 			<td><?php _e( 'Your MySQL username' ); ?></td>
 		</tr>

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.5-alpha-36543';
+$wp_version = '4.5-alpha-36544';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.