String whiteListStr = oldWhiteList;
String blackListStr = oldBlackList;
String hostRegex = computeHostRegex(url);
TreeLogger reason = header.branch(msgType, "reason: " + url
+ " is not in the whitelist", null);
reason.log(msgType, "whitelist: " + whiteListStr, null);
reason.log(msgType, "blacklist: " + blackListStr, null);
TreeLogger fix = header.branch(msgType, "To fix: add regex matching "
+ "URL to -whitelist command line argument", null);
fix.log(msgType, "Example: -whitelist \"" + whiteListStr + " " + hostRegex
+ "\"", null);