Cleanup
Space separated arguments less relevant without using print()
“--export-copies” option for compatibility with “git svn”

* Add Node-copyfrom-path and -rev support to test framework
Disable “strict_node_history” to work around Google Code off-by-one issue

The command

svn log -v https://gmapcatcher.googlecode.com/svn/branches/mvr-current@238 --stop-on-copy

only returns r238 (a normal commit). It should also return r237, a branch
copy from trunk. However removing the “--stop-on-copy” option, equivalent to
setting strict_node_history=False, works around this.
Merge branch 'py3' into HEAD
Real location segments for root path tend to start at revision zero
Avoid attempting to export revision zero