Remove check on argv[0] if argv[0] is null
Remove check on argv[0] if argv[0] is null

Attempted fix for GitHub issue #73

nicolasff/webdis,mrkeng/webdis,nicolasff/webdis,nicolasff/webdis,cauchycui/webdis,boothj5/webdis,nicolasff/webdis,nicolasff/webdis,cauchycui/webdis,boothj5/webdis,boothj5/webdis,mrkeng/webdis,mrkeng/webdis,mrkeng/webdis,cauchycui/webdis,cauchycui/webdis,boothj5/webdis