LibCore: Show version and help before parsing positional arguments

This allows `--version` and `--help` to work properly even if we do not
supply the required positional arguments to a command.

Userland/Libraries/LibCore/ArgsParser.cpp

@@ -108,7 +108,23 @@ bool ArgsParser::parse(int argc, char* const* argv, FailureBehavior failure_beha
  }
  }
 
- // We're done processing options, now let's parse positional arguments.
+ // We're done processing options.
+ // Now let's show version or help if requested.
+
+ if (m_show_version) {
+ print_version(stdout);
+ if (failure_behavior == FailureBehavior::Exit || failure_behavior == FailureBehavior::PrintUsageAndExit)
+ exit(0);
+ return false;
+ }
+ if (m_show_help) {
+ print_usage(stdout, argv[0]);
+ if (failure_behavior == FailureBehavior::Exit || failure_behavior == FailureBehavior::PrintUsageAndExit)
+ exit(0);
+ return false;
+ }
+
+ // Now let's parse positional arguments.
 
  int values_left = argc - optind;
  Vector<int, 16> num_values_for_arg;
@@ -153,21 +169,6 @@ bool ArgsParser::parse(int argc, char* const* argv, FailureBehavior failure_beha
  }
  }
 
- // We're done parsing! :)
- // Now let's show version or help if requested.
- if (m_show_version) {
- print_version(stdout);
- if (failure_behavior == FailureBehavior::Exit || failure_behavior == FailureBehavior::PrintUsageAndExit)
- exit(0);
- return false;
- }
- if (m_show_help) {
- print_usage(stdout, argv[0]);
- if (failure_behavior == FailureBehavior::Exit || failure_behavior == FailureBehavior::PrintUsageAndExit)
- exit(0);
- return false;
- }
-
  return true;
 }