message: Silence GCC 7 warning "control reaches end of non-void function" (-Wreturn-type) in psbt.cpp
diff: @@ -337,7 +337,9 @@ std::string PSBTRoleName(PSBTRole role) {
  case PSBTRole::SIGNER: return "signer";
  case PSBTRole::FINALIZER: return "finalizer";
  case PSBTRole::EXTRACTOR: return "extractor";
  + // no default case, so the compiler can warn about missing cases
  }
  + assert(false);
  }
  bool DecodeBase64PSBT(PartiallySignedTransaction& psbt, const std::string& base64_tx, std::string& error)
  