checkcommits: Fix spelling error found by misspell
checkcommits: Fix spelling error found by misspell

Apparently this is 'definately' the most mis-spelled word
in the English language.

Fixes: #130

Signed-off-by: Graham Whaley <95f36e5ac6982f4574a5c449c37cf652e934d2b9@intel.com>

bwarden/tests,sboeuf/tests,MarioCarrilloA/tests,clearcontainers/tests,clearcontainers/tests,MarioCarrilloA/tests,devimc/tests,sboeuf/tests,bwarden/tests,GabyCT/tests,devimc/tests,chavafg/tests,GabyCT/tests,chavafg/tests