- fix the name of a flow violation metric
- fix the name of a flow violation metric

Summary: removed extra tilda in the name of the "~flow~violation~methods~idom" metric

Reviewed By: NTillmann

Differential Revision: D29799184

fbshipit-source-id: 49e8b8d10c1d37d3093cbfc99b15fcb49a0aa99f

facebook/redex,facebook/redex,facebook/redex,facebook/redex,facebook/redex,facebook/redex,facebook/redex,facebook/redex,facebook/redex