The usage string directly printed by print_debugger_command() and

invoke_debugger_command() is now automatically preceded by
"usage: <command name>", so the string passed to
add_debugger_command_etc() shouldn't contain it anymore. 


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23584 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/system/kernel/debug/debug_commands.cpp

@@ -99,7 +99,8 @@ invoke_debugger_command(struct debugger_command *command, int argc, char** argv)
 	// If we know the command's usage text, intercept "--help" invocations
 	// and print it directly.
 	if (argc == 2 && strcmp(argv[1], "--help") == 0 && command->usage != NULL) {
-		kprintf(command->usage, command->name);
+		kprintf("usage: %s ", command->name);
+		kprintf(command->usage);
 		return 0;
 	}
 
@@ -233,7 +234,8 @@ print_debugger_command_usage(const char* commandName)
 	// directly print the usage text, if we know it, otherwise invoke the
 	// command with "--help"
 	if (command->usage != NULL) {
-		kprintf(command->usage, command->name);
+		kprintf("usage: %s ", command->name);
+		kprintf(command->usage);
 	} else {
 		char* args[3] = { NULL, "--help", NULL };
 		invoke_debugger_command(command, 2, args);