Output license info when binaries are passed -version

Consolidate to outputting the licensing info when we pass -version to a binary,
i.e bitcoind -version:
```bash
itcoin Core version v22.99.0-fc1f355913f6-dirty
Copyright (C) 2009-2022 The Bitcoin Core developers

Please contribute if you find Bitcoin Core useful. Visit
<https://bitcoincore.org/> for further information about the software.
The source code is available from <https://github.com/bitcoin/bitcoin>.

This is experimental software.
Distributed under the MIT software license, see the accompanying file COPYING
or <https://opensource.org/licenses/MIT>
```

Author: fanquake

src/bitcoin-cli.cpp

@@ -133,7 +133,10 @@ static int AppInitRPC(int argc, char* argv[])
     }
     if (argc < 2 || HelpRequested(gArgs) || gArgs.IsArgSet("-version")) {
         std::string strUsage = PACKAGE_NAME " RPC client version " + FormatFullVersion() + "\n";
-        if (!gArgs.IsArgSet("-version")) {
+
+        if (gArgs.IsArgSet("-version")) {
+            strUsage += FormatParagraph(LicenseInfo());
+        } else {
             strUsage += "\n"
                 "Usage:  bitcoin-cli [options] <command> [params]  Send command to " PACKAGE_NAME "\n"
                 "or:     bitcoin-cli [options] -named <command> [name=value]...  Send command to " PACKAGE_NAME " (with named arguments)\n"

src/bitcoin-tx.cpp

@@ -102,7 +102,10 @@ static int AppInitRawTx(int argc, char* argv[])
     if (argc < 2 || HelpRequested(gArgs) || gArgs.IsArgSet("-version")) {
         // First part of help message is specific to this utility
         std::string strUsage = PACKAGE_NAME " bitcoin-tx utility version " + FormatFullVersion() + "\n";
-        if (!gArgs.IsArgSet("-version")) {
+
+        if (gArgs.IsArgSet("-version")) {
+            strUsage += FormatParagraph(LicenseInfo());
+        } else {
             strUsage += "\n"
                 "Usage:  bitcoin-tx [options] <hex-tx> [commands]  Update hex-encoded bitcoin transaction\n"
                 "or:     bitcoin-tx [options] -create [commands]   Create hex-encoded bitcoin transaction\n"

src/bitcoin-util.cpp

@@ -53,7 +53,10 @@ static int AppInitUtil(ArgsManager& args, int argc, char* argv[])
     if (HelpRequested(args) || args.IsArgSet("-version")) {
         // First part of help message is specific to this utility
         std::string strUsage = PACKAGE_NAME " bitcoin-util utility version " + FormatFullVersion() + "\n";
-        if (!args.IsArgSet("-version")) {
+
+        if (args.IsArgSet("-version")) {
+            strUsage += FormatParagraph(LicenseInfo());
+        } else {
             strUsage += "\n"
                 "Usage:  bitcoin-util [options] [commands]  Do stuff\n";
             strUsage += "\n" + args.GetHelpMessage();

src/bitcoin-wallet.cpp

@@ -59,7 +59,10 @@ static bool WalletAppInit(ArgsManager& args, int argc, char* argv[])
     }
     if (argc < 2 || HelpRequested(args) || args.IsArgSet("-version")) {
         std::string strUsage = strprintf("%s bitcoin-wallet version", PACKAGE_NAME) + " " + FormatFullVersion() + "\n";
-        if (!args.IsArgSet("-version")) {
+
+        if (args.IsArgSet("-version")) {
+            strUsage += FormatParagraph(LicenseInfo());
+        } else {
             strUsage += "\n"
                         "bitcoin-wallet is an offline tool for creating and interacting with " PACKAGE_NAME " wallet files.\n"
                         "By default bitcoin-wallet will act on wallets in the default mainnet wallet directory in the datadir.\n"

src/bitcoind.cpp

@@ -126,9 +126,10 @@ static bool AppInit(NodeContext& node, int argc, char* argv[])
     if (HelpRequested(args) || args.IsArgSet("-version")) {
         std::string strUsage = PACKAGE_NAME " version " + FormatFullVersion() + "\n";
 
-        if (!args.IsArgSet("-version")) {
-            strUsage += FormatParagraph(LicenseInfo()) + "\n"
-                "\nUsage:  bitcoind [options]                     Start " PACKAGE_NAME "\n"
+        if (args.IsArgSet("-version")) {
+            strUsage += FormatParagraph(LicenseInfo());
+        } else {
+            strUsage += "\nUsage:  bitcoind [options]                     Start " PACKAGE_NAME "\n"
                 "\n";
             strUsage += args.GetHelpMessage();
         }