Non-fatal unwanted errors in dkms output when it builds any module

[MrCry0]

How to reproduce:

1. Add your module into dkms
2. Install your module into your system with "dkms install".

Actual result:
/usr/sbin/dkms: line 2018: /dev/fd/62: No such file or directory
/usr/sbin/dkms: line 1950: /dev/fd/62: No such file or directory

Expected result:
no errors should be displayed.