Notice when running phive about phive HOT 5 CLOSED

$ git clone https://github.com/phar-io/phive.git
$ cd phive
$ ./phive 
Phive 0.1.0-85-g87e365c - Copyright (C) 2015-2016 by Arne Blankerts, Sebastian Heuer and Contributors

[ERROR]   An error occured while processing your request:

          Undefined index: _

          #0 src/shared/Environment.php(63)
          #1 src/shared/Environment.php(63): PharIo\Phive\Cli\Runner->errorHandler()
          #2 src/commands/help/HelpCommand.php(37): PharIo\Phive\Environment->getBinaryName()
          #3 src/shared/cli/Runner.php(51): PharIo\Phive\HelpCommand->execute()
          #4 phive(55): PharIo\Phive\Cli\Runner->run()
          #5 {main}

          Environment: PHP 5.6.11-1ubuntu3.1
          Phive Version: 0.1.0-85-g87e365c

          This should not have happend and is most likely a bug.
          Please report it at https://github.com/phar-io/phive/issues, make sure you include
          the full output of this error message. Thank you!