When using the msysgit and the git svn fetch you may encounter the error:
"can't locate config_heavy.pl in @INC ... at /usr/lib/perl5/5.8.8/msys/Config.pm line 66".
This has been reported to the msysgit-team and the fix should be available in an upcoming version as stated here: http://code.google.com/p/msysgit/issues/detail?id=433. In the mean time you can download the git-svn-fix.zip from the following GitHub-repository to get around the problem. After downloading the file, extract it into the following folder: C:Program Files (x86)Git.
You can check if the installation succeeded by making sure that the file Config_heavy.pl exists in the folder C:Program Files (x86)Gitlibperl55.8.8msys.
Git-svn-fix.zip location: https://github.com/mikoskinen/blog/tree/master/git-svn-fix