Nope - we use a $$$ wasteful format WARN instead of just W, the canonical format: https://github.com/google/glog/blob/master/src/glog/logging.h.in#L279-L301 Implemented here: https://github.com/twitter/commons/blob/master/src/python/twitter/common/log/formatters/glog.py And here: https://github.com/twitter/commons/blob/master/src/java/com/twitter/common/logging/Glog.java