Allow donation=0

qa/rpc-tests/shieldcoinbase_donation.py

@@ -153,5 +153,3 @@ class ShieldCoinbaseDonationTest (BitcoinTestFramework):
 if __name__ == '__main__':
     ShieldCoinbaseDonationTest().main()
 
-
-

src/wallet/rpcwallet.cpp

@@ -5562,7 +5562,7 @@ UniValue z_shieldcoinbase(const UniValue& params, bool fHelp, const CPubKey& myp
     uint8_t donation = 0;
     if (params.size() > 4) {
         donation = params[4].get_int();
-        if (donation < 1 || donation > 10 ) {
+        if (donation < 0 || donation > 10 ) {
             throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid donation percentage, must be an integer between 1 and 10");
         }
     }