Fix #199: Correctly check _inherited_absl_flags by comparing to None instead of implicit bool.
The documented contract is to skip absl flags when inherited_absl_flags is passed None. A FlagValues instance without any flags evaluates to False and shouldn't let it skip.
Fix #199: Correctly check
_inherited_absl_flags
by comparing toNone
instead of implicit bool.The documented contract is to skip absl flags when
inherited_absl_flags
is passedNone
. AFlagValues
instance without any flags evaluates toFalse
and shouldn't let it skip.