Fix spelling in buildbot_spec2k
Fix spelling in buildbot_spec2k

In particular, this fixes pnacl-arm-buildonly
(which was spelled correctly in English but incorrectly in this script)

R= robertm@chromium.org
BUG=none
TEST=arm spec bot

Review URL: https://chromiumcodereview.appspot.com/10271035

git-svn-id: 721b910a23eff8a86f00c8fd261a7587cddf18f8@8470 fcba33aa-ac0c-11dd-b9e7-8d5594d729c2

sbc100/native_client,sbc100/native_client,nacl-webkit/native_client,nacl-webkit/native_client,nacl-webkit/native_client,nacl-webkit/native_client,sbc100/native_client,nacl-webkit/native_client,sbc100/native_client,sbc100/native_client,sbc100/native_client