xlat expansion of absent VPs

[Alan DeKok]

Stelian Ionescu wrote:
> In processing a request that does not contain Called-Station-Id, I
> noticed that absent VPs now get expanded to an underscore instead of the
> usual empty string:

  That's how it was in 2.x.  Or at least how the code was *supposed* to
work.

  The idea is that a place-holder is better than silently expanding to
an empty string.  An empty string means that data which is supposed to
be 4 columns (for example) is now suddenly 3.  That's bad.

  If you want to force an empty string, use:

	%{%{Attribute-Name}:-}

  Which will do what you want.

  Alan DeKok.