Fix a potential segfault in svn_io_remove_dir2.
Fix a potential segfault in svn_io_remove_dir2.

Found by: kameshj

* subversion/libsvn_subr/io.c
  (svn_io_remove_dir2):  Don't pass non-canonical path "." to svn_path_join,
    which asserts that its arguments are canonical.

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