Not identifying --username parameter

[kkoster]

I am getting a problem similar to that mentioned in issue #22. I am working on a Windows 7 machine with cygwin. I have installed svn2git according to the instructions found at http://shrubbery.mynetgear.net/c/display/W/Converting+SVN+to+Git+with+svn2git. I am getting the following errors from the script:

/usr/lib/ruby/1.8/optparse.rb:1445:in complete': invalid option: --username (OptionParser::InvalidOption) from /usr/lib/ruby/1.8/optparse.rb:1443:incatch'
from /usr/lib/ruby/1.8/optparse.rb:1443:in complete' from /usr/lib/ruby/1.8/optparse.rb:1256:inparse_in_order'
from /usr/lib/ruby/1.8/optparse.rb:1249:in catch' from /usr/lib/ruby/1.8/optparse.rb:1249:inparse_in_order'
from /usr/lib/ruby/1.8/optparse.rb:1243:in order!' from /usr/lib/ruby/1.8/optparse.rb:1334:inpermute!'
from /usr/lib/ruby/1.8/optparse.rb:1355:in parse!' from /usr/lib/ruby/gems/1.8/gems/nirvdrum-svn2git-1.3.1/lib/svn2git/migration.rb:101:inparse'
from /usr/lib/ruby/gems/1.8/gems/nirvdrum-svn2git-1.3.1/lib/svn2git/migration.rb:12:in initialize' from /usr/lib/ruby/gems/1.8/gems/nirvdrum-svn2git-1.3.1/bin/svn2git:25:innew'
from /usr/lib/ruby/gems/1.8/gems/nirvdrum-svn2git-1.3.1/bin/svn2git:25
from /usr/bin/svn2git:19:in `load'
from /usr/bin/svn2git:19

I am not a Ruby developer so I haven't gone into the code to see what is going on. Any ideas?