Coding Standards: Improve formatting of some SQL queries for better readability.

This corrects the placement of double quotes around the query and makes sure the alignment is consistent.

Props umeshmcakadi, mukesh27, krupalpanchal, dhrumilk, SergeyBiryukov.
Fixes #58372.

git-svn-id: https://develop.svn.wordpress.org/trunk@55857 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-admin/includes/post.php

@@ -1010,11 +1010,10 @@ function get_meta_keys() {
 	global $wpdb;
 
 	$keys = $wpdb->get_col(
-		"
-			SELECT meta_key
-			FROM $wpdb->postmeta
-			GROUP BY meta_key
-			ORDER BY meta_key"
+		"SELECT meta_key
+		FROM $wpdb->postmeta
+		GROUP BY meta_key
+		ORDER BY meta_key"
 	);
 
 	return $keys;