travis: git-validation detects travis now
travis: git-validation detects travis now

The `-range` argument is not needed.

Signed-off-by: Vincent Batts <d01a4772f0cffd3f005a7d7f01c59cd104c7a5fe@hashbangbash.com>

hqhq/runtime-spec,hqhq/specs,wking/opencontainer-runtime-spec,opencontainers/specs,laijs/specs,wking/opencontainer-specs,ujuc/specs,cloudfoundry-incubator/specs,opencontainers/runtime-spec,jonboulle/specs,vbatts/specs