fix handling of files of unsupported type in the walk code
if a file was of unsupported type, it was considered as 'seen' while
walking. this way it was possible to have file in the dirstate not
yielded by the walk function.
#!/bin/shhg initecho This is file a1 > ahg add ahg commit -m "commit #0" -d "0 0"touch bhg add brm bhg commit -A -m"comment #1" -d "0 0"