AutoHotkey: Added missing "format" built-in (#2450)

Author: joedf

components/prism-autohotkey.js

@@ -22,6 +22,7 @@ exp
 fileexist
 Fileopen
 floor
+format
 il_add
 il_create
 il_destroy
@@ -108,6 +109,7 @@ __Set
 	["builtin", "fileexist"],
 	["builtin", "Fileopen"],
 	["builtin", "floor"],
+	["builtin", "format"],
 	["builtin", "il_add"],
 	["builtin", "il_create"],
 	["builtin", "il_destroy"],