scripts: zephyr_flash_debug: fix ARC OPENOCD_EXTRA_INIT

Though it isn't used by any in-tree Makefile.boards, looking at the
RIOT OS build system, this is meant to be split along lexical
boundaries defined by the shell, not just whitespace.

Signed-off-by: Marti Bolivar <marti.bolivar@linaro.org>
1 file changed