multiple authors in manifest [closed]

edit

Has anyone else noticed this error? I "fixed" it by including all authors in the same block.

(Fuerte, Lucid, debs)

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Traceback (most recent call last):
  File "/usr/bin/rosversion", line 76, in <module>
    version = rosstack.get_stack_version(stack_name)
  File "/usr/lib/pymodules/python2.6/rospkg/rospack.py", line 414, in get_stack_version
    return get_stack_version_by_dir(self.get_path(stack))
  File "/usr/lib/pymodules/python2.6/rospkg/rospack.py", line 469, in get_stack_version_by_dir
    m = parse_manifest_file(stack_dir, STACK_FILE)
  File "/usr/lib/pymodules/python2.6/rospkg/manifest.py", line 343, in parse_manifest_file
    return parse_manifest(manifest_name, f.read(), filename)
  File "/usr/lib/pymodules/python2.6/rospkg/manifest.py", line 404, in parse_manifest
    m.author = _check('author')(p, filename)
  File "/usr/lib/pymodules/python2.6/rospkg/manifest.py", line 67, in check
    raise InvalidManifest("Invalid manifest file [%s]: must have a single '%s' element"%(filename, name))
rospkg.manifest.InvalidManifest: Invalid manifest file [/opt/ros/fuerte/share/ros/stack.xml]: must have a single 'author' element
Invalid <param> tag: Cannot load command parameter [rosversion]: command [rosversion ros] returned with code [1]. 

Param xml is <param command="rosversion ros" name="rosversion"/>