Pass argc and argv through to weston_compositor_init

Allowing it to do option parsing as well.

Signed-off-by: Daniel Stone <daniel@fooishbar.org>
diff --git a/src/compositor.c b/src/compositor.c
index d450ac3..f9c9b2c 100644
--- a/src/compositor.c
+++ b/src/compositor.c
@@ -2838,7 +2838,10 @@
 }
 
 WL_EXPORT int
-weston_compositor_init(struct weston_compositor *ec, struct wl_display *display)
+weston_compositor_init(struct weston_compositor *ec,
+		       struct wl_display *display,
+		       int argc,
+		       char *argv[])
 {
 	struct wl_event_loop *loop;
 	const char *extensions;