Pavuk Web Spider and Performance Measure

When I modify the options using the X interface and
save them, I always get a second "Verify CERT", with
two colons added to my .pavukrc.

Here's an excerpt from the file:

AllowSSL: true
Verify CERT: true
Verify CERT:: true
AllowFTPS: true

Pavuk, when started with this extra line gives the
following warning message:
Only "true" & "false" is allowed : ": true"

Here's the full output of pavuk -v

Only "true" & "false" is allowed : ": true"
pavuk 0.9.32 2005-07-15T12:38
Optional features available :
- Debug mode
- GNU gettext internationalization of messages
- flock() document locking
- Gtk GUI interface
- URL tree preview
- HTTP and FTP over SSL
- SSL layer implemneted with OpenSSL library
- Socks v5 proxy support
- optional regex patterns in -fnrules and -*rpattern
options
- POSIX regexp
- support for detecting whether pavuk is running as
background job
- multithreading support
- NTLM authorization support
- IPv6 support