message: Small doc cleanup
diff: @@ -63,8 +63,8 @@ StatusOr<bool> HloConstantFolding::Run(HloModule* module) {
  continue;
  }
  - // Broadcasts dramatically increase the size of constants with is often
  - // detrimental to performance and memory capacity so do not fold
  + // Broadcasts dramatically increase the size of constants, which is often
  + // detrimental to performance and memory capacity, so do not fold
  // broadcasts.
  if (instruction->opcode() == HloOpcode::kBroadcast) {
  continue;
  