- Update newvers.sh to include svn revision in uname(1) if the
  system has svnliteversion.
- If svnliteversion is not found, look for svnversion in /usr/bin
  and /usr/local/bin, since svnlite can be installed as svn if
  WITH_SVN is set.[1]
- Remove /bin from binary search paths.[1]

Discussed with:	kib [1]
MFC after:	3 days
Approved by:	kib (mentor)