No functional change.

* subversion/libsvn_fs_x/fs_x.c
  (svn_fs_x__ensure_revision_exists): fix indentation;
                                      remove duplicate return;


git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1543598 13f79535-47bb-0310-9956-ffa450edef68