When Bad Spelling Gets Standardized

While studying the configuration options of the proxy cache Squid, I stumbled over this gem of a comment:

#    Squid will write the Referer field from HTTP requests to the
#    filename specified here.  By default referer_log is disabled.
#    Note that "referer" is actually a misspelling of "referrer"
#    however the misspelt version has been accepted into the HTTP RFCs
#    and we accept both.

    comment