plone/plone.app.users — comment on commit c2cac165d05776ae3c25386595e13c388a7483e2
File: plone/app/users/browser/personalpreferences.py line 362
By djay:

There is twoo different facilities. If an empty password is validated then its the help text. If a non empty password is passed in then the return value is a series of error messages.