MDL-72871 cleanup: Remove incorrect whitespace from codebase

Differences can be checked with git diff --ignore-all-space and
that will show that the only non-whitespace change is in a test
in the git lib/tests/html2text_test.php file. In that case the
whitespace has been replaced by a quoted string (of whitespaces)
keeping the test 100% equivalent and workarrounding the whitespace.

webservice/wsdoc.php

@@ -44,7 +44,7 @@ $PAGE->navbar->ignore_active(true);
 $PAGE->navbar->add(get_string('preferences'), new moodle_url('/user/preferences.php'));
 $PAGE->navbar->add(get_string('useraccount'));
 $PAGE->navbar->add(get_string('securitykeys', 'webservice'),
-        new moodle_url('/user/managetoken.php', 
+        new moodle_url('/user/managetoken.php',
                 array('id' => $tokenid, 'sesskey' => sesskey())));
 $PAGE->navbar->add(get_string('wsdocumentation', 'webservice'));