Fix Host time is not getting printed to journal

log<level::DEBUG> is not putting Host time into journal, instead it is
putting it in the metadata. Made fix for it.

Testing:
ipmitool sel time get # Host time:xxx XXX  x xx:xx:xx xxxx will be
                      # printed in into journal

Change-Id: I0ba72a871469a30c605ee3ec91a07787959d5ae3
Signed-off-by: Nagaraju Goruganti <ngorugan@in.ibm.com>
diff --git a/storagehandler.cpp b/storagehandler.cpp
index 3f1ebe2..c020948 100644
--- a/storagehandler.cpp
+++ b/storagehandler.cpp
@@ -433,6 +433,7 @@
     using namespace std::chrono;
     uint64_t host_time_usec = 0;
     uint32_t resp = 0;
+    std::stringstream hostTime;
 
     try
     {
@@ -469,8 +470,9 @@
         return IPMI_CC_UNSPECIFIED_ERROR;
     }
 
-    log<level::DEBUG>("Host time:",
-                      entry("HOST_TIME=%s", getTimeString(host_time_usec)));
+    hostTime << "Host time:" << getTimeString(host_time_usec);
+    log<level::DEBUG>(hostTime.str().c_str());
+
 
     // Time is really long int but IPMI wants just uint32. This works okay until
     // the number of seconds since 1970 overflows uint32 size.. Still a whole