simplewallet: add a few missing settings help text

src/simplewallet/simplewallet.cpp

@@ -2881,6 +2881,8 @@ simple_wallet::simple_wallet()
                                   "  Whether to warn if there is transaction backlog.\n "
                                   "confirm-backlog-threshold [n]\n "
                                   "  Set a threshold for confirm-backlog to only warn if the transaction backlog is greater than n blocks.\n "
+                                  "confirm-export-overwrite <1|0>\n "
+                                  "  Whether to warn if the file to be exported already exists.\n "
                                   "refresh-from-block-height [n]\n "
                                   "  Set the height before which to ignore blocks.\n "
                                   "auto-low-priority <1|0>\n "
@@ -2888,12 +2890,20 @@ simple_wallet::simple_wallet()
                                   "segregate-pre-fork-outputs <1|0>\n "
                                   "  Set this if you intend to spend outputs on both Monero AND a key reusing fork.\n "
                                   "key-reuse-mitigation2 <1|0>\n "
-                                  "  Set this if you are not sure whether you will spend on a key reusing Monero fork later.\n"
+                                  "  Set this if you are not sure whether you will spend on a key reusing Monero fork later.\n "
                                   "subaddress-lookahead <major>:<minor>\n "
                                   "  Set the lookahead sizes for the subaddress hash table.\n "
                                   "  Set this if you are not sure whether you will spend on a key reusing Monero fork later.\n "
                                   "segregation-height <n>\n "
-                                  "  Set to the height of a key reusing fork you want to use, 0 to use default."));
+                                  "  Set to the height of a key reusing fork you want to use, 0 to use default.\n "
+                                  "ignore-fractional-outputs <1|0>\n "
+                                  "  Whether to ignore fractional outputs that result in net loss when spending due to fee.\n "
+                                  "track-uses <1|0>\n "
+                                  "  Whether to keep track of owned outputs uses.\n "
+                                  "setup-background-mining <1|0>\n "
+                                  "  Whether to enable background mining. Set this to support the network and to get a chance to receive new monero.\n "
+                                  "device-name <device_name[:device_spec]>\n "
+                                  "  Device name for hardware wallet."));
   m_cmd_binder.set_handler("encrypted_seed",
                            boost::bind(&simple_wallet::encrypted_seed, this, _1),
                            tr("Display the encrypted Electrum-style mnemonic seed."));
@@ -3257,8 +3267,8 @@ bool simple_wallet::set_variable(const std::vector<std::string> &args)
     success_msg_writer() << "segregation-height = " << m_wallet->segregation_height();
     success_msg_writer() << "ignore-fractional-outputs = " << m_wallet->ignore_fractional_outputs();
     success_msg_writer() << "track-uses = " << m_wallet->track_uses();
-    success_msg_writer() << "setup-background-mining = " << setup_background_mining_string + tr(" (set this to support the network and to get a chance to receive new monero)");
-    success_msg_writer() << "device_name = " << m_wallet->device_name();
+    success_msg_writer() << "setup-background-mining = " << setup_background_mining_string;
+    success_msg_writer() << "device-name = " << m_wallet->device_name();
     return true;
   }
   else