Incorporate rmustacc's review feedback.

*** 18,28 ****
  possibly surrounded by whitespace.
  
  New lines preceeded by backslashes are ignored, allowing for a continuation
  of lines, in the usual UNIX way.
  
! A line beginning with a hashmark is comment, and is ignore, as are lines
  consisting solely of whitespace.
  
  The first field is always the "keyword", which determines the meaning and
  presence of any other fields.
  
--- 18,28 ----
  possibly surrounded by whitespace.
  
  New lines preceeded by backslashes are ignored, allowing for a continuation
  of lines, in the usual UNIX way.
  
! A line beginning with a hashmark is a comment, and is ignored, as are lines
  consisting solely of whitespace.
  
  The first field is always the "keyword", which determines the meaning and
  presence of any other fields.