Update sonic-utilities (#887)

pavel-shirshov · web-flow · commit c299fe472d35 · 2017-08-14T15:56:40.000-07:00
diff --git a/src/sonic-utilities b/src/sonic-utilities
@@ -1 +1 @@
-Subproject commit ac7ea4f3b9dcc5cef15cc7ec0e796cde8a7f8ab8
+Subproject commit 18bb5ed74cb40c5205cdc0a553ce79c02a541272
