AutoIt: Allow hyphen in directive (#3308)

AutoIt: Allow hyphen in directive (#3308) · PrismJS/prism@bcb2e2c

Original file line number	Diff line number	Diff line change
`@@ -1,13 +1,17 @@`
`1`	`1`	`#NoTrayIcon`
`2`	`2`	`#OnAutoItStartRegister "Example"`
	`3`	`+#include-once`
	`4`	`+#include <MsgBoxConstants.au3>`
`3`	`5`
`4`	`6`	`----------------------------------------------------`
`5`	`7`
`6`	`8`	`[`
`7`	`9`	`["directive", "#NoTrayIcon"],`
`8`		`- ["directive", "#OnAutoItStartRegister"], ["string", ["\"Example\""]]`
	`10`	`+ ["directive", "#OnAutoItStartRegister"], ["string", ["\"Example\""]],`
	`11`	`+ ["directive", "#include-once"],`
	`12`	`+ ["directive", "#include"], ["url", "<MsgBoxConstants.au3>"]`
`9`	`13`	`]`
`10`	`14`
`11`	`15`	`----------------------------------------------------`
`12`	`16`
`13`		`-Checks for directives.`
	`17`	`+Checks for directives.`