Fix a Doxygen typo.
Fix a Doxygen typo.

* subversion/include/svn_version.h
  (svn_version_ext_linked_libs): s/@eturns/@return/.

jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion