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/HwmonTempSensor.cpp b/src/HwmonTempSensor.cpp
index b195c0c..15d4d38 100644
--- a/src/HwmonTempSensor.cpp
+++ b/src/HwmonTempSensor.cpp
@@ -47,8 +47,8 @@
     Sensor(boost::replace_all_copy(sensorName, " ", "_"),
            std::move(_thresholds), sensorConfiguration, objectType, maxReading,
            minReading),
-    path(path), objServer(objectServer),
-    inputDev(io, open(path.c_str(), O_RDONLY)), waitTimer(io), errCount(0)
+    objServer(objectServer), inputDev(io, open(path.c_str(), O_RDONLY)),
+    waitTimer(io), path(path), errCount(0)
 {
     sensorInterface = objectServer.add_interface(
         "/xyz/openbmc_project/sensors/temperature/" + name,