test: subprocessSetAPILevel: fix a linter warning
test: subprocessSetAPILevel: fix a linter warning

This fixes the following warning from gosimple linter:

> seccomp_test.go:146:2: S1021: should merge variable declaration with
> assignment on next line (gosimple)

Signed-off-by: Kir Kolyshkin <3a017b8ddb3f9cf3e4a59978b004111bdeb97f08@gmail.com>
Acked-by: Paul Moore <a027184a55211cd23e3f3094f1fdc728df5e0500@paul-moore.com>
Signed-off-by: Tom Hromatka <96b9c1f2c09b98d7a09b4688fc637f1494d8e182@oracle.com>

seccomp/libseccomp-golang