bug#50167: fixes for "fmt - -" etc.

[Bernhard Voelker]

On 8/25/21 10:38 AM, Jim Meyering wrote:
> * cfg.mk (exclude_file_name_regexp--sc_system_h_headers):
> Add find-mount-point.h to the regexp.

+1
even better, thanks.

Have a nice day,
Berny