variable.
See `GIT_TRACE` for available trace output options.
+`GIT_TRACE_CURL_NO_DATA`::
+ When a curl trace is enabled (see `GIT_TRACE_CURL` above), do not dump
+ data (that is, only dump info lines and headers).
+
`GIT_REDACT_COOKIES`::
This can be set to a comma-separated list of strings. When a curl trace
is enabled (see `GIT_TRACE_CURL` above), whenever a "Cookies:" header