Fix bad log statement

Someone needs to double check me here, but I suspect this was not doing
what the author intended with the sizeof call, considering it's no a C
array.

Signed-off-by: Ed Tanous <ed@tanous.net>
Change-Id: I603b72837e24be0eca6337d0703dc56c47dba1d3
diff --git a/include/ibm/locks.hpp b/include/ibm/locks.hpp
index e986f32..f6719c7 100644
--- a/include/ibm/locks.hpp
+++ b/include/ibm/locks.hpp
@@ -497,7 +497,7 @@
     {
         BMCWEB_LOG_DEBUG << "Validation of Number of Segments Failed";
         BMCWEB_LOG_DEBUG << "Number of Segments provied : "
-                         << sizeof(std::get<4>(refLockRecord));
+                         << std::get<4>(refLockRecord).size();
         return false;
     }