scripts: remove bogus command substitution in systemd-autofs-restart.sh
scripts: remove bogus command substitution in systemd-autofs-restart.sh

When we want to just execute command (without capturing output), we must
not do it via $(cmd). With such form, shell first gets output of 'cmd',
and then evaluates it. If this is empty string, it is successfully
executed. If not empty, all breaks down.
https://jira.sw.ru/browse/PSBM-44207

Signed-off-by: Eugene Kolomeetz <e13ac15a30aaa8c841b369b1e0ca4d4d79ffd8cf@virtuozzo.com>
Signed-off-by: Pavel Emelyanov <c9a32589e048e044184536f7ac71ef92fe82df3e@virtuozzo.com>

eabatalov/criu,efiop/criu,eabatalov/criu,KKoukiou/criu-remote,efiop/criu,eabatalov/criu,eabatalov/criu,efiop/criu,eabatalov/criu,efiop/criu,eabatalov/criu,KKoukiou/criu-remote,efiop/criu,KKoukiou/criu-remote,efiop/criu,KKoukiou/criu-remote,KKoukiou/criu-remote,KKoukiou/criu-remote