Add missing new line

Author: tblah

flang/lib/Optimizer/Builder/Runtime/Intrinsics.cpp

@@ -244,4 +244,5 @@ void fir::runtime::genSleep(fir::FirOpBuilder &builder, mlir::Location loc,
   mlir::func::FuncOp func{
       fir::runtime::getRuntimeFunc<mkRTKey(Sleep)>(loc, builder)};
   builder.create<fir::CallOp>(loc, func, seconds);
-}
+}
+