Update postgresql.conf units display

I have applied the attached patch to display the units options in
postgresql.conf more clearly.

--
  Bruce Momjian  <bruce@momjian.us>        http://momjian.us
  EnterpriseDB                             http://enterprisedb.com

  + If your life is a hard drive, Christ can be your backup. +
Index: postgresql.conf.sample
===================================================================
RCS file: /cvsroot/pgsql/src/backend/utils/misc/postgresql.conf.sample,v
retrieving revision 1.254
retrieving revision 1.255
diff -c -c -r1.254 -r1.255
*** postgresql.conf.sample    28 Feb 2009 00:10:52 -0000    1.254
--- postgresql.conf.sample    6 Apr 2009 18:40:47 -0000    1.255
***************
*** 24,31 ****
  # "postgres -c log_connections=on".  Some parameters can be changed at run time
  # with the "SET" SQL command.
  #
! # Memory units:  kB = kilobytes MB = megabytes GB = gigabytes
! # Time units:    ms = milliseconds s = seconds min = minutes h = hours d = days


  #------------------------------------------------------------------------------
--- 24,34 ----
  # "postgres -c log_connections=on".  Some parameters can be changed at run time
  # with the "SET" SQL command.
  #
! # Memory units:  kB = kilobytes          Time units:  ms = milliseconds
! #                MB = megabytes                       s = seconds
! #                GB = gigabytes                       min = minutes
! #                                                     h = hours
! #                                                     d = days


  #------------------------------------------------------------------------------