Include ``svn:externals`` directories in source distributions as well as normal subversion-controlled files and directories.
Include ``svn:externals`` directories in source distributions as well as
normal subversion-controlled files and directories.

--HG--
branch : setuptools
extra : convert_revision : svn%3A6015fed2-1504-0410-9fe1-9d1591cc4771/sandbox/trunk/setuptools%4041101

pypa/setuptools,pypa/setuptools,pypa/setuptools