bwrap: implement argument builder

Signed-off-by: Ophestra Umiker <cat@ophivana.moe>

bwrap/config.int.go

@@ -0,0 +1,22 @@
+package bwrap
+
+const (
+	UID = iota
+	GID
+
+	intC
+)
+
+var intArgs = func() (n [intC]string) {
+	n[UID] = "--uid"
+	n[GID] = "--gid"
+
+	return
+}()
+
+func (c *Config) intArgs() (n [intC]*int) {
+	n[UID] = c.UID
+	n[GID] = c.GID
+
+	return
+}