fix warnings

Fix a couple warnings so we can use meson warning level 3.  Instances of
the following warnings are found and resolved:

  Wreorder
  Wsign-compare

Change-Id: Ia223b42aa6bf743cfa0e7042cc3d5a18977459be
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/src/PwmSensor.cpp b/src/PwmSensor.cpp
index 3fdde65..5aa729e 100644
--- a/src/PwmSensor.cpp
+++ b/src/PwmSensor.cpp
@@ -29,8 +29,8 @@
 PwmSensor::PwmSensor(const std::string& name, const std::string& sysPath,
                      sdbusplus::asio::object_server& objectServer,
                      const std::string& sensorConfiguration) :
-    name(name),
-    sysPath(sysPath), objectServer(objectServer)
+    sysPath(sysPath),
+    objectServer(objectServer), name(name)
 {
     // add interface under sensor and Control.FanPwm as Control is used
     // in obmc project, also add sensor so it can be viewed as a sensor