Arrange help output to sort 'column first'
Arrange help output to sort 'column first'

Sort the command name index, and then print them in file columns (as
before), but ordering columns first. This makes it much easier to
examine the 'help' command output.

BUG=none
TEST=manual
  . program the new image
  . execute the 'help' command
  . observe output printed sorted 'columns first'

Change-Id: I7b15cef09a61fe20eb4ba5ee274ba1d72063f1c0
Signed-off-by: Vadim Bendebury <5515d6d2d0829cbe0dd0dcf2094aaded06d58514@chromium.org>

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