Fix gem helper spec when running with rake 10.5
Fix gem helper spec when running with rake 10.5

seanlinsley/bundler,mvz/bundler,RochesterinNYC/bundler,asutoshpalai/bundler,RochesterinNYC/bundler,dilumnavanjana/bundler,bronzdoc/bundler,bundler/bundler,dilumnavanjana/bundler,bronzdoc/bundler,mvz/bundler,asutoshpalai/bundler,seanlinsley/bundler,bundler/bundler