interfaces/opengl: use == to compare, not =

interfaces/builtin/opengl.go

@@ -64,7 +64,7 @@ const openglConnectedPlugAppArmor = `
 `
 
 const openglConnectedPlugUDev = `
-SUBSYSTEM="drm", KERNEL=="card[0-9]*", TAG+="###CONNECTED_SECURITY_TAGS###"
+SUBSYSTEM=="drm", KERNEL=="card[0-9]*", TAG+="###CONNECTED_SECURITY_TAGS###"
 KERNEL=="nvidia*", TAG+="###CONNECTED_SECURITY_TAGS###"
 KERNEL=="vchiq",   TAG+="###CONNECTED_SECURITY_TAGS###"
 `

interfaces/builtin/opengl_test.go

@@ -87,7 +87,7 @@ func (s *OpenglInterfaceSuite) TestUDevSpec(c *C) {
 	spec := &udev.Specification{}
 	c.Assert(spec.AddConnectedPlug(s.iface, s.plug, nil, s.slot, nil), IsNil)
 	c.Assert(spec.Snippets(), HasLen, 1)
-	c.Assert(spec.Snippets()[0], testutil.Contains, `SUBSYSTEM="drm", KERNEL=="card[0-9]*", TAG+="snap_consumer_app"`)
+	c.Assert(spec.Snippets()[0], testutil.Contains, `SUBSYSTEM=="drm", KERNEL=="card[0-9]*", TAG+="snap_consumer_app"`)
 }
 
 func (s *OpenglInterfaceSuite) TestStaticInfo(c *C) {