Convert fRescan argument to importprivkey to bool

src/bitcoinrpc.cpp

@@ -1219,6 +1219,7 @@ Array RPCConvertValues(const std::string &strMethod, const std::vector<std::stri
     if (strMethod == "gettxout"               && n > 2) ConvertTo<bool>(params[2]);
     if (strMethod == "lockunspent"            && n > 0) ConvertTo<bool>(params[0]);
     if (strMethod == "lockunspent"            && n > 1) ConvertTo<Array>(params[1]);
+    if (strMethod == "importprivkey"          && n > 2) ConvertTo<bool>(params[2]);
 
     return params;
 }