update swarm to v1.1.0-rc3

Signed-off-by: Victor Vieux <[email protected]>

library/swarm

@@ -3,7 +3,7 @@
 # maintainer: Alexandre Beslic <[email protected]> (@abronan)
 # maintainer: Dong Chen<[email protected]> (@dongluochen)
 
-1.1.0-rc2: git://github.com/docker/swarm-library-image@28263ce873fc87be988c6b90f9bef9c269549093
+1.1.0-rc3: git://github.com/docker/swarm-library-image@73403dbc9a5ebfa2f48c331abe815c0228dd94b4
 
 1.0.0: git://github.com/docker/swarm-library-image@84c0d7d2d98d5f4f4178e517523925c1d5ebe7cc
 1.0.1: git://github.com/docker/swarm-library-image@8fc43f5ab8f0a25872bb7ed6237f68dd673c1e79