[api] Default to `options` if `options.store` is not available in nconf.Literal
[api] Default to `options` if `options.store` is not available in nconf.Literal

imjerrybao/nconf,olalonde/nconf,HansHammel/nconf,Dependencies/nconf,bryce-gibson/nconf,ChristianMurphy/nconf,NickHeiner/nconf,remy/nconf,philip1986/nconf,indexzero/nconf