GEODE-7426: Fixes segfault in log message. (#545)


(cherry picked from commit 55da853760c200c53568fe2e6549c912ec26cc27)
diff --git a/cppcache/src/ThinClientPoolDM.cpp b/cppcache/src/ThinClientPoolDM.cpp
index c9b9475..67eb9b3 100644
--- a/cppcache/src/ThinClientPoolDM.cpp
+++ b/cppcache/src/ThinClientPoolDM.cpp
@@ -493,9 +493,8 @@
           m_connManageTaskId, _nextIdle)) {
     LOGERROR("Failed to reschedule connection manager");
   } else {
-    LOGFINEST(
-        "Rescheduled next connection manager run after %z seconds",
-        std::chrono::duration_cast<std::chrono::seconds>(_nextIdle).count());
+    LOGFINEST("Rescheduled next connection manager run after %s",
+              to_string(_nextIdle).c_str());
   }
 
   LOGDEBUG("Pool size is %d, pool counter is %d", size(), m_poolSize.load());