It turns out that the fix for the missing terminating newline is not
robust. This hopefully fixes the issue and resolves the following
error message:
In file included from /home/maribu/Repos/software/RIOT/tests/pkg_emlearn/main.c:25:
/home/maribu/Repos/software/RIOT/tests/pkg_emlearn/model.h:7221:36: error: stray '\' in program
7221 | /* fix for no newline at eof */\n
| ^
/home/maribu/Repos/software/RIOT/tests/pkg_emlearn/model.h:7221:38: error: expected ';' before '_Alignas'
7221 | /* fix for no newline at eof */\n
| ^
| ;