Login and Registration: Use secondary button style for the Language switcher.

This change avoids having two primary buttons in the login screen.

Props rainbowgeek, audrasjb.
Fixes #54692.

Built from https://develop.svn.wordpress.org/trunk@52417


git-svn-id: http://core.svn.wordpress.org/trunk@52009 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/version.php

@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.9-beta4-52416';
+$wp_version = '5.9-beta4-52417';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.

wp-login.php

@@ -367,7 +367,7 @@ function login_footer( $input_id = '' ) {
 						<input type="hidden" name="action" value="<?php echo esc_attr( $_GET['action'] ); ?>" />
 					<?php } ?>
 
-						<input type="submit" class="button button-primary" value="<?php esc_attr_e( 'Change' ); ?>">
+						<input type="submit" class="button" value="<?php esc_attr_e( 'Change' ); ?>">
 
 					</form>
 				</div>