shill: Naming and lint cleanup pass

Reduce some double-speak in IPAddress constants.  Do a cursory
glint pass and clean up a few no-brainer issues.

BUG=None
TEST=Re-run unit tests

Change-Id: I063cd72111bd1f6321f81c6c6591b9f51d87434d
Reviewed-on: http://gerrit.chromium.org/gerrit/7181
Reviewed-by: Paul Stewart <pstew@chromium.org>
Tested-by: Paul Stewart <pstew@chromium.org>
diff --git a/routing_table_entry.h b/routing_table_entry.h
index 727df83..9cf41de 100644
--- a/routing_table_entry.h
+++ b/routing_table_entry.h
@@ -17,9 +17,9 @@
 struct RoutingTableEntry {
  public:
   RoutingTableEntry()
-      : dst(IPAddress::kAddressFamilyUnknown),
-        src(IPAddress::kAddressFamilyUnknown),
-        gateway(IPAddress::kAddressFamilyUnknown),
+      : dst(IPAddress::kFamilyUnknown),
+        src(IPAddress::kFamilyUnknown),
+        gateway(IPAddress::kFamilyUnknown),
         metric(0),
         scope(0),
         from_rtnl(false) {}