specs: fix typo
specs: fix typo

Signed-off-by: Giuseppe Scrivano <20002b7b24c75512093a71a58285826d5c504fca@redhat.com>

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