Harmonize importprivkey and importaddress documentation

src/rpcdump.cpp

@@ -72,16 +72,17 @@ Value importprivkey(const Array& params, bool fHelp)
             "\nAdds a private key (as returned by dumpprivkey) to your wallet.\n"
             "\nArguments:\n"
             "1. \"bitcoinprivkey\"   (string, required) The private key (see dumpprivkey)\n"
-            "2. \"label\"            (string, optional) an optional label\n"
+            "2. \"label\"            (string, optional, default=\"\") An optional label\n"
             "3. rescan               (boolean, optional, default=true) Rescan the wallet for transactions\n"
+            "\nNote: This call can take minutes to complete if rescan is true.\n"
             "\nExamples:\n"
             "\nDump a private key\n"
             + HelpExampleCli("dumpprivkey", "\"myaddress\"") +
-            "\nImport the private key\n"
+            "\nImport the private key with rescan\n"
             + HelpExampleCli("importprivkey", "\"mykey\"") +
-            "\nImport using a label\n"
+            "\nImport using a label and without rescan\n"
             + HelpExampleCli("importprivkey", "\"mykey\" \"testing\" false") +
-            "\nAs a json rpc call\n"
+            "\nAs a JSON-RPC call\n"
             + HelpExampleRpc("importprivkey", "\"mykey\", \"testing\", false")
         );
 
@@ -137,8 +138,21 @@ Value importaddress(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() < 1 || params.size() > 3)
         throw runtime_error(
-            "importaddress <address> [label] [rescan=true]\n"
-            "Adds an address or script (in hex) that can be watched as if it were in your wallet but cannot be used to spend.");
+            "importaddress \"address\" ( \"label\" rescan )\n"
+            "\nAdds an address or script (in hex) that can be watched as if it were in your wallet but cannot be used to spend.\n"
+            "\nArguments:\n"
+            "1. \"address\"          (string, required) The address\n"
+            "2. \"label\"            (string, optional, default=\"\") An optional label\n"
+            "3. rescan               (boolean, optional, default=true) Rescan the wallet for transactions\n"
+            "\nNote: This call can take minutes to complete if rescan is true.\n"
+            "\nExamples:\n"
+            "\nImport an address with rescan\n"
+            + HelpExampleCli("importaddress", "\"myaddress\"") +
+            "\nImport using a label without rescan\n"
+            + HelpExampleCli("importaddress", "\"myaddress\" \"testing\" false") +
+            "\nAs a JSON-RPC call\n"
+            + HelpExampleRpc("importaddress", "\"myaddress\", \"testing\", false")
+        );
 
     CScript script;