[webkit-reviews] review requested: [Bug 31872] centralize required argument parsing in Command : [Attachment 43842] Centralize required argument parsing

[bugzilla-daemon at webkit.org]

Eric Seidel <eric at webkit.org> has asked  for review:
Bug 31872: centralize required argument parsing in Command
https://bugs.webkit.org/show_bug.cgi?id=31872

Attachment 43842: Centralize required argument parsing
https://bugs.webkit.org/attachment.cgi?id=43842&action=review