Style: Fix recently-added tabs; convert to spaces
Style: Fix recently-added tabs; convert to spaces

This fixes the tabs that I introduced accidentally in r139 because
I forgot to set
  (set-default 'indent-tabs-mode nil)
in the instance of Emacs that I was using.

BUG=none
TEST=make all test

Review URL: http://codereview.chromium.org/3922004
ericmckean/seccompsandbox,cnbird1999/seccompsandbox,ericmckean/seccompsandbox,cnbird1999/seccompsandbox,cnbird1999/seccompsandbox,ericmckean/seccompsandbox