Docs: Remove an unwanted trailing space found after [60108].

Follow-up to [60108].

See #63041, #63166.



git-svn-id: https://develop.svn.wordpress.org/trunk@60109 602fd350-edb4-49c9-b593-d223f7449a82

Author: audrasjb

tests/phpunit/tests/link/wpGetCanonicalUrl.php

@@ -8,7 +8,7 @@
 
 /**
  * Class for Testing the wp_get_canonical_url() function.
- * 
+ *
  * @group link
  * @group canonical
  * @covers ::wp_get_canonical_url