[ZPT] [Documentation(?) Weakness] Trailing whitespace in "string:" expressions

[Dieter Maurer]

Trailing (and leading) whitespace of TALES "string:" expressions is included
into the value.

May be (probably is) a feature!
Should probably be stressed in the documentation, together with
the workaround:

    <....
      tal:define="
       ....
       x   string:value;
       "
      ....
    >


Dieter