added missing cli args for V2.0

contrib/icinga2_check_command_definition.conf

@@ -1,9 +1,9 @@
 object CheckCommand "http_json" {
-        import "plugin-check-command"
+		import "plugin-check-command"
 
-        command = [ PluginDir + "/check_http_json.py" ]
+		command = [ PluginDir + "/check_http_json.py" ]
 
-        arguments = {
+		arguments = {
 		"--host" = {
 			value = "$address$"
 			description = "Hostname or address of the interface to query"
@@ -53,12 +53,14 @@ object CheckCommand "http_json" {
 			value = "$http_json_headers$"
 			description = "additional http headers in JSON format to send with the request"
 		}
-
 		"--field_separator" = {
 			value = "$http_json_field_separator$"
 			description = "JSON Field separator, defaults to '.'; Select element in an array with '(' ')'"
 		}
-
+		"--value_separator" = {
+			value = "$http_json_value_separator$"
+			description = "JSON Value separator, defaults to ':'"
+		}
 		"--warning" = {
 			value = "$http_json_warning$"
 			description = "Warning threshold for these values, WarningRange is in the format [@]start:end"