update gcc10 and clang-format10

Signed-off-by: Patrick Venture <venture@google.com>
Change-Id: I72239b884615d26b2c4311c49a26e2eced0a1fb0
diff --git a/tools/io.hpp b/tools/io.hpp
index 8760aec..1476c5c 100644
--- a/tools/io.hpp
+++ b/tools/io.hpp
@@ -44,8 +44,7 @@
   public:
     explicit DevMemDevice(const internal::Sys* sys = &internal::sys_impl) :
         sys(sys)
-    {
-    }
+    {}
 
     ~DevMemDevice() = default;
 
@@ -75,8 +74,7 @@
                           const internal::Sys* sys = &internal::sys_impl) :
         ppcMemPath(ppcMemPath),
         sys(sys)
-    {
-    }
+    {}
 
     ~PpcMemDevice() override;