internal/pkg: optionally register binfmt

This transparently supports curing foreign exec artifacts.

Signed-off-by: Ophestra <cat@gensokyo.uk>

internal/rosa/all_test.go

@@ -20,8 +20,8 @@ func TestLoad(t *testing.T) {
 }
 
 func BenchmarkAll(b *testing.B) {
-	flags := rosa.Flags()
-	b.Cleanup(func() { rosa.DropCaches(flags) })
+	arch, flags := rosa.Arch(), rosa.Flags()
+	b.Cleanup(func() { rosa.DropCaches(arch, flags) })
 
 	for b.Loop() {
 		for i := range rosa.PresetEnd {
@@ -29,7 +29,7 @@ func BenchmarkAll(b *testing.B) {
 		}
 
 		b.StopTimer()
-		rosa.DropCaches(0)
+		rosa.DropCaches("", 0)
 		b.StartTimer()
 	}
 }