Author: David Mudrák
MDL-36056 form: Do not allow passwords with wrapping whitespace
This is to avoid accidental misconfiguration while copy/pasting the
password value.
http://git.moodle.org/gw?p=moodle.git;a=commit;h=0c6554e03c9527b3e8f08f751ff124e9953ab5ec
http://github.com/moodle/moodle/commit/0c6554e03c9527b3e8f08f751ff124e9953ab5ec
+ 3.5 en [err_wrappingwhitespace,core_form]