On 'svn-auth-x509' branch, set svn:eol-style to native.

* subversion/include/svn_x509.h,
  subversion/libsvn_subr/x509.h,
  subversion/libsvn_subr/x509info.c,
  subversion/libsvn_subr/x509parse.c: Set to native line endings and fix the
    CRLF endings as is currently stored in the repo.


git-svn-id: https://svn.apache.org/repos/asf/subversion/branches/svn-auth-x509@1636428 13f79535-47bb-0310-9956-ffa450edef68