build: refactor Makefile
- add character classes
- replace
echo -n
withprintf
Checklist
-
make -j4 test
(UNIX), orvcbuild test
(Windows) passes -
commit message follows commit guidelines
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
echo -n
with printf
make -j4 test
(UNIX), or vcbuild test
(Windows) passes