ipsec _secretcensor is called by
ipsec barf
to process the @IPSEC_SECRETS_FILE@ file to
remove the private key components from the file prior to revealing
the contents.
Man page written for the Linux FreeS/WAN project <https://www.freeswan.org/> by Michael Richardson. Original program by Henry Spencer. Upated for <https://libreswan.org> by Paul Wouters and Tuomo Soini.