[Trivial][RPC] Fix example line in importprivkey help (missing arg)

Github-Pull: #1242
Rebased-From: ce93872

src/wallet/rpcdump.cpp

@@ -77,15 +77,15 @@ UniValue importprivkey(const UniValue& params, bool fHelp)
 {
     if (fHelp || params.size() < 1 || params.size() > 4)
         throw std::runtime_error(
-            "importprivkey \"pivxprivkey\" ( \"label\" rescan )\n"
+            "importprivkey \"pivxprivkey\" ( \"label\" rescan fStakingAddress )\n"
             "\nAdds a private key (as returned by dumpprivkey) to your wallet.\n" +
             HelpRequiringPassphrase() + "\n"
 
             "\nArguments:\n"
             "1. \"pivxprivkey\"      (string, required) The private key (see dumpprivkey)\n"
             "2. \"label\"            (string, optional, default=\"\") An optional label\n"
             "3. rescan               (boolean, optional, default=true) Rescan the wallet for transactions\n"
-            "4. fStakingAddress      (boolean, optional, default=false) Whether this key refers to a staking address\n"
+            "4. fStakingAddress      (boolean, optional, default=false) Whether this key refers to a (cold) staking address\n"
 
             "\nNote: This call can take minutes to complete if rescan is true.\n"