Fix address for imported key (p2sh/p2wpkh)

Note that this does not fix *usage* of the coins corresponding
to the imported key, which is currently not working. A further fix
is needed for coin selection and display.

jmclient/jmclient/wallet_utils.py

@@ -280,7 +280,8 @@ def get_imported_privkey_branch(wallet, m, showprivkey):
     if m in wallet.imported_privkeys:
         entries = []
         for i, privkey in enumerate(wallet.imported_privkeys[m]):
-            addr = btc.privtoaddr(privkey, magicbyte=get_p2sh_vbyte())
+            pub = btc.privkey_to_pubkey(privkey)
+            addr = btc.pubkey_to_p2sh_p2wpkh_address(pub, magicbyte=get_p2sh_vbyte())
             balance = 0.0
             for addrvalue in wallet.unspent.values():
                 if addr == addrvalue['address']: