Adrian Buehlmann <adrian@cadifra.com> [Fri, 28 May 2010 17:28:34 +0200] rev 11233
clone: save hardlink state of util.copyfiles()
When trying to do hardlink-cloning, the os_link() call of the
first file tried already fails on Windows, if the source is on a
UNC path.
This change avoids calling os_link() for the rest of files, leaving
us with a *single* failed os_link() call per clone operation, if the
source can't do hardlinks.