Small rewording in folly Benchmark comment
Small rewording in folly Benchmark comment

Summary: A bit more clear

Reviewed By: yfeldblum

Differential Revision: D4075931

fbshipit-source-id: 1398500336d412b5e7663ef1e67b20a329ce2979

floxard/folly,rklabs/folly,facebook/folly,Orvid/folly,rklabs/folly,rklabs/folly,rklabs/folly,rklabs/folly,facebook/folly,floxard/folly,charsyam/folly,floxard/folly,floxard/folly,Orvid/folly,facebook/folly,facebook/folly,floxard/folly,Orvid/folly,charsyam/folly,Orvid/folly,Orvid/folly,charsyam/folly,charsyam/folly,facebook/folly