Remove sscanf() in TetherController.

Test: netd_unit_test, netd_integration_test, libnetd_resolv_test
Change-Id: Ibff2d6cc5dbf4fb09fcd1862be1b71be3b1d9f8e
diff --git a/server/TetherController.h b/server/TetherController.h
index 18d0dc3..49c2339 100644
--- a/server/TetherController.h
+++ b/server/TetherController.h
@@ -31,7 +31,7 @@
 namespace net {
 
 class TetherController {
-private:
+  private:
     struct ForwardingDownstream {
         std::string iface;
         bool active;
@@ -93,7 +93,7 @@
     int setupIptablesHooks();
 
     class TetherStats {
-    public:
+      public:
         TetherStats() = default;
         TetherStats(std::string intIfn, std::string extIfn,
                 int64_t rxB, int64_t rxP,
@@ -142,7 +142,7 @@
 
     std::mutex lock;
 
-private:
+  private:
     bool setIpFwdEnabled();
     std::vector<char*> toCstrVec(const std::vector<std::string>& addrs);
     int setupIPv6CountersChain();