+email-filter::
+ Specifies a command which will be invoked to format names and email
+ address of committers, authors, and taggers, as represented in various
+ places throughout the cgit interface. This command will receive an
+ email address and an origin page string as its command line arguments,
+ and the text to format on STDIN. It is to write the formatted text back
+ out onto STDOUT. Default value: none. See also: "FILTER API".
+