There is no need for elaborate queries and error checking when trying to
set FW4MSG_ENCAP.

MFC after:	3 days
Get rid of a couple of stray \n's.

MFC after:	3 days.
Fix bugs in the elapsed time calculation in ctlstat_standard()
pointed out by bde:

- Casting to long double isn't needed.
- The division isn't needed, multiplication can be used.
  "When 1 nanosecond is in a floating point literal, the whole
  expression is automatically promoted correctly."
- non-KNF indentation (1 tab) for the newly split line
- different non-KNF indentation (5 spaces) for the previously split
  line
- exessive parentheses around the division operation
- bogus blank line which splits up the etime initialization
- general verboseness from the above.

Submitted by:	bde
MFC after:	3 days