[riot-notifications] [RIOT-OS/RIOT] makefile: Fix usage error with busybox grep (#15852)
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Mon Jan 25 10:44:55 CET 2021
Busybox grep does not support long options. In fact, the utilized long options are not mandated by POSIX.1-2008. Using the short options allows cross compiling RIOT applications on Alpine Linux which utilizes Busybox instead of GNU coreutils by default.
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-- Commit Summary --
* makefile: Fix usage error with busybox grep
-- File Changes --
M makefiles/usb-codes.inc.mk (2)
-- Patch Links --
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