slocal used to support two different formats for three of

slocal used to support two different formats for three of
its arguments:

  [address info sender]
  [-addr address] [-info data] [-sender sender]

But it hasn't properly supported the first form since at
least April 1999.  So, I removed that first form from the
man page and the broken support from the code.  Score
another for the test suite!