Case T-682/15 P: Judgment of the General Court of 22 September 2017 — Wanègue v Committee of the Regions (Appeal — Civil service — Officials — Working conditions — Overtime — Chauffeur in grade AST 6 — Withdrawal of entitlement to the fixed allowance for overtime — Equality of arms — Obligation to state reasons — Errors in law — Distortion of the facts)