-a  Simple option
-b
  Simple option on next line
--very-long-option    Long option
+f  Option using +
-f FILE  Option with value 1
--file=FILE  Option with value 2
-2, --two  Two options in a row.
-f FILE, --file=FILE  Two options with values in a row.
/V    A VMS/DOS-style option.

----------------------------------------------------

[
	["command-line-option", "-a"],
	"  Simple option\r\n",
	["command-line-option", "-b"],
	"\r\n  Simple option on next line\r\n",
	["command-line-option", "--very-long-option"],
	"    Long option\r\n",
	["command-line-option", "+f"],
	"  Option using +\r\n",
	["command-line-option", "-f FILE"],
	"  Option with value 1\r\n",
	["command-line-option", "--file=FILE"],
	"  Option with value 2\r\n",
	["command-line-option", "-2, --two"],
	"  Two options in a row.\r\n",
	["command-line-option", "-f FILE, --file=FILE"],
	"  Two options with values in a row.\r\n",
	["command-line-option", "/V"],
	"    A VMS/DOS-style option."
]

----------------------------------------------------

Checks for command line options.