sf patch #1243998, from Evan Schoenberg, also some changes by me
Basically novell needed a prpl->normalize function that
didn't remove spaces. But I didn't like having the default
normalize code make the string lowercase and remove spaces,
so I changed the default to basically do nothing.

Anyhoo, if you think of yourself as the primary contact for
one of the PRPLs, you may want to make sure your PRPL has a
normalize function, if it needs one.