clutter might not be able to recognize links to dirs as dirs

[itayd]

when trying to use in envoy:

$ ./docs/buid.sh
<--- snip --->
Exception occurred:
  File "/usr/local/lib/python3.9/site-packages/sphinx_clutter/ext.py", line 43, in _search
    raise ClutterException(f'exec {cmd} -> {proc.returncode}\n{stderr}')
sphinx_clutter.ext.ClutterException: exec ['clutter', '--index-path', '', 's', 'all_logger_ids'] -> 1
error: read index: stdin: scan: file envoy/bazel-bin: tool: read: read envoy/bazel-bin: is a directory

(also, why does it say "stdin" there?)

probably because:

$ stat -F bazel-bin                                                                                                     
lrwxr-xr-x 1 itay staff 107 Feb 14 00:15:38 2021 bazel-bin@ -> /private/var/tmp/_bazel_itay/800edecea9e18f876c2dfb43e4fcfe6a/execroot/envoy/bazel-out/darwin-fastbuild/bin
$ stat -FL bazel-bin                                                                                                    
drwxr-xr-x 4 itay wheel 128 Feb 14 00:18:35 2021 bazel-bin/