39a94e370c
The units defined in blenkernel/intern/unit.c were extracted using a
regex which contained `NULL`. Commit 129f78eee7 converted this file to
c++, and these `NULL` were replaced with `nullptr`, breaking the
regex.
This commit changes the regex to `nullptr` as well to restore the
translations.
Pull Request: https://projects.blender.org/blender/blender/pulls/110420