scum bug

scum bug

     Fix the reported bug about an inappropriate space in the message
  "For you, scum ; only N zorkmids for that foo."
when an angry shopkeeper quotes a price for an item which has just been
picked up.  Also, suppress "only" in that case; just include it when the shk
isn't angry.  And the word "zorkmids" was actually missing, so I added it.
I think the semi-colon should actually be a comma, but I've left that as is.