Docs: Replace multiple single line comments with multi-line comments.

This changeset updates various comments as per WordPress PHP Inline Documentation Standards.
See https://developer.wordpress.org/coding-standards/inline-documentation-standards/php/#5-inline-comments.

Follow-up to [56174], [56175], [56176], [56177], [56178], [56179], [56180].

Props costdev, audrasjb.
See #58459.



Built from https://develop.svn.wordpress.org/trunk@56191


git-svn-id: http://core.svn.wordpress.org/trunk@55703 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/https-detection.php

@@ -49,9 +49,11 @@ function wp_is_home_url_using_https() {
  * @return bool True if using HTTPS, false otherwise.
  */
 function wp_is_site_url_using_https() {
-	// Use direct option access for 'siteurl' and manually run the 'site_url'
-	// filter because `site_url()` will adjust the scheme based on what the
-	// current request is using.
+	/*
+	 * Use direct option access for 'siteurl' and manually run the 'site_url'
+	 * filter because `site_url()` will adjust the scheme based on what the
+	 * current request is using.
+	 */
 	/** This filter is documented in wp-includes/link-template.php */
 	$site_url = apply_filters( 'site_url', get_option( 'siteurl' ), '', null, null );