simple-authentication: style

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>

filters/simple-authentication.lua

@@ -166,7 +166,7 @@ function url_encode(str)
 		return ""
 	end
 	str = string.gsub(str, "\n", "\r\n")
-	str = string.gsub(str, "([^%w ])", function (c) return string.format("%%%02X", string.byte(c)) end)
+	str = string.gsub(str, "([^%w ])", function(c) return string.format("%%%02X", string.byte(c)) end)
 	str = string.gsub(str, " ", "+")
 	return str
 end