Update left

Add version where negative numbers are allowed

data/en/left.json

@@ -12,7 +12,7 @@
 
 	],
 	"engines": {
-		"coldfusion": {"minimum_version":"", "notes":"", "docs":"https://helpx.adobe.com/coldfusion/cfml-reference/coldfusion-functions/functions-l/left.html"},
+		"coldfusion": {"minimum_version":"", "notes":"The count can be a negative integer as of CF2018+", "docs":"https://helpx.adobe.com/coldfusion/cfml-reference/coldfusion-functions/functions-l/left.html"},
 		"lucee": {"minimum_version":"", "notes":"", "docs":"https://docs.lucee.org/reference/functions/left.html"},
 		"railo": {"minimum_version":"", "notes":"", "docs":"http://railodocs.org/index.cfm/function/left"},
 		"openbd": {"minimum_version":"", "notes":"", "docs":"http://openbd.org/manual/?/function/left"}