bmpflash: Marked the version and help options exclusive, removing the…

… need for the explicit either-or check

src/bmpflash.cxx

@@ -76,14 +76,7 @@ int main(const int argCount, const char *const *const argList)
 	console.showDebug(verbosity & 1U);
 
 	// Handle the version and help options first
-	const auto *const version{args["version"sv]};
-	const auto *const help{args["help"sv]};
-	if (version && help)
-	{
-		console.error("Can only specify one of --help and --version, not both."sv);
-		return 1;
-	}
-	if (version)
+	if (args["version"sv])
 	{
 		bmpflash::displayVersion();
 		const auto *const libusbVersion{libusb_get_version()};
@@ -92,7 +85,7 @@ int main(const int argCount, const char *const *const argList)
 		return 0;
 	}
 	// Display the help if requested or there were no command line options given
-	if (help || args.count() == 0U)
+	if (args["help"sv] || args.count() == 0U)
 	{
 		bmpflash::displayHelp();
 		return 0;

src/include/options.hxx

@@ -111,8 +111,8 @@ namespace bmpflash
 	{
 		options
 		(
-			option_t{optionFlagPair_t{"-h"sv, "--help"sv}, "Display this help message and exit"sv},
-			option_t{"--version"sv, "Display the program version information and exit"sv},
+			option_t{optionFlagPair_t{"-h"sv, "--help"sv}, "Display this help message and exit"sv}.exclusive(),
+			option_t{"--version"sv, "Display the program version information and exit"sv}.exclusive(),
 			option_t{optionFlagPair_t{"-v"sv, "--verbosity"sv}, "Set the program output verbosity"sv}
 				.takesParameter(optionValueType_t::unsignedInt).valueRange(0U, 1U),
 			optionSet_t{"action"sv, actions}