Port from xdamage to xcb-damage

No functional changes intended. The new xcb_damage_query_version() was
previously done by XDamageQueryExtension() internally.

Signed-off-by: Uli Schlachter <psychon@znc.in>

src/win.c

@@ -892,7 +892,7 @@ bool add_win(session_t *ps, Window id, Window prev) {
     // Create Damage for window
     new->damage = xcb_generate_id(c);
     xcb_generic_error_t *e = xcb_request_check(c,
-      xcb_damage_create_checked(c, new->damage, id, XDamageReportNonEmpty));
+      xcb_damage_create_checked(c, new->damage, id, XCB_DAMAGE_REPORT_LEVEL_NON_EMPTY));
     if (e) {
       free(e);
       free(new);