selftests/bpf: Fix the ASSERT_ERR_PTR macro

It is just missing a ';'. This macro is not used by any test yet.

Fixes: 22ba3635 ("selftests/bpf: Move and extend ASSERT_xxx() testing macros")
Signed-off-by: Florent Revest <revest@chromium.org>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Link: https://lore.kernel.org/bpf/20210414155632.737866-1-revest@chromium.org

tools/testing/selftests/bpf/test_progs.h

@@ -210,7 +210,7 @@ extern int test__join_cgroup(const char *path);
 #define ASSERT_ERR_PTR(ptr, name) ({					\
 	static int duration = 0;					\
 	const void *___res = (ptr);					\
-	bool ___ok = IS_ERR(___res)					\
+	bool ___ok = IS_ERR(___res);					\
 	CHECK(!___ok, (name), "unexpected pointer: %p\n", ___res);	\
 	___ok;								\
 })