shill: Bring the interface up when the modem is connected.

BUG=chromium-os:18855
TEST=unit tests, tested on device

Change-Id: I91581fbedc959bf4dce63f09d64b920f12a14b53
Reviewed-on: http://gerrit.chromium.org/gerrit/5925
Tested-by: Darin Petkov <petkov@chromium.org>
Reviewed-by: Paul Stewart <pstew@chromium.org>
diff --git a/rtnl_handler.cc b/rtnl_handler.cc
index d9d8024..d32509e 100644
--- a/rtnl_handler.cc
+++ b/rtnl_handler.cc
@@ -121,7 +121,7 @@
 }
 
 void RTNLHandler::SetInterfaceFlags(int interface_index, unsigned int flags,
-                                   unsigned int change) {
+                                    unsigned int change) {
   struct rtnl_request {
     struct nlmsghdr hdr;
     struct ifinfomsg msg;