e503b2b fixed listunspent rpc convert parameter (tnaka)
Tree-SHA512: 6da1cee8fd8459187825fad47678b36bbf6b4582f03f557c8a48c2c4273d9e12405e8bb6ade02a06e6555419eefb1dc298d4d4781ebb3b6b72743ca6108cb18e
Backport of Core PR10627
https://github.com/bitcoin/bitcoin/pull/10627