3226             # `$HGRCPATH` but some tests override that, or changing `_hgcommand` to include

  3226             # `$HGRCPATH` but some tests override that, or changing `_hgcommand` to include

  3227             # `--config` but that disrupts tests that print command lines and check expected

  3227             # `--config` but that disrupts tests that print command lines and check expected

  3228             # output.

  3228             # output.

  3229             osenvironb[b'RHG_ON_UNSUPPORTED'] = b'fallback'

  3229             osenvironb[b'RHG_ON_UNSUPPORTED'] = b'fallback'

  3230             osenvironb[b'RHG_FALLBACK_EXECUTABLE'] = real_hg

  3230             osenvironb[b'RHG_FALLBACK_EXECUTABLE'] = real_hg

  3231         else:

  3232         else:

  3232             # drop flag for hghave

  3233             # drop flag for hghave

  3233             osenvironb.pop(b'RHG_INSTALLED_AS_HG', None)

  3234             osenvironb.pop(b'RHG_INSTALLED_AS_HG', None)

  3234         if self.options.rhg:

  3235         if self.options.rhg:

  3235             self._hgcommand = b'rhg'

  3236             self._hgcommand = b'rhg'