Merge #829: Hide "Total balance" in wallet-tool when only single mixdepth is displayed

9ea0a732f2 Hide "Total balance" in wallet-tool when only single mixdepth is displayed (Kristaps Kaupe)

Pull request description:

  Addresses minor concern raised by @AdamISZ [here](https://github.com/JoinMarket-Org/joinmarket-clientserver/pull/820#issuecomment-792308720) that `wallet-tool.py -m` now displays "Total balance" row which actually shows not total wallet balance but balance of a single choosen mixdepth.

Top commit has no ACKs.

Tree-SHA512: 26492674df0d66aed88b89c5f23223eae2eeb034b6be8f8029f3065a1ae51bbc123e82aecb01d54ae0b0a0e23c435c6d3a9c696731cb3227b125b5fe4ef8202e

docs/fidelity-bonds.md

@@ -101,7 +101,6 @@ display:
     m/49'/1'/0'/2/0:1585699200  bcrt1qrc2qu3m2l2spayu5kr0k0rnn9xgjz46zsxmruh87a3h3f5zmnkaqlfx7v5    0.15000000  2020-04-01 [LOCKED]
     Balance:    0.15000000
     Balance for mixdepth 0: 0.15000000
-    Total balance:  0.15000000
 
 #### Spending time-locked coins
 
@@ -185,7 +184,6 @@ synchronizations.
     m/49'/1'/0'/3/0         BURN-7631c805d8ad9239677b8d7530353fda3fec07ca   0.11999800  656bb4538f14f2cc874043915907b6c9c46a807ef9818bde771d07630d54b0f7 [NO MERKLE PROOF]
     Balance:    0.11999800
     Balance for mixdepth 0: 0.11999800
-    Total balance:  0.11999800
 
 #### Adding the merkle proof of a burn transaction if missing
 
@@ -255,7 +253,6 @@ mixdepth will be shown.
     internal addresses  m/49'/1'/0'/3   tpubDEGdmPwmQRcZuX3uNrCouu5bRgp2GJcoQTvhkFAJMTA3yxhKmQyeGwecbnkms4DYmBhCJn2fGTuejTe3g8oyJW3qKcfB4b3Swj2hDk1h4Y2
     Balance:    0.00000000
     Balance for mixdepth 0: 0.15000000
-    Total balance:  0.15000000
 
 ### BIP32 Paths
 

jmclient/jmclient/wallet_utils.py

@@ -301,7 +301,11 @@ class WalletView(WalletViewBase):
 
     def serialize(self, entryseparator="\n", summarize=False):
         header = self.wallet_name
-        footer = "Total balance:" + self.separator + self.get_fmt_balance()
+        if len(self.accounts) > 1:
+            footer = "Total balance:" + self.separator + \
+                self.get_fmt_balance()
+        else:
+            footer = ""
         if summarize:
             return self.serclass(entryseparator.join([header] + [
                 x.serialize("", summarize=True) for x in self.accounts] + [footer]))