Fall back to False when pillar_opts not set
Fall back to False when pillar_opts not set

This should have been changed when we altered the default value in
16a3938. It caused a missing pillar_opts minion config value to
incorrectly assume that master config should have been added to the
pillar data.

saltstack/salt,saltstack/salt,saltstack/salt,saltstack/salt,saltstack/salt