Using exception message instead of stack trace in EOS error reporting.

tapeserver/castor/tape/tapeserver/daemon/MigrationReportPacker.cpp

@@ -70,7 +70,7 @@ std::unique_ptr<cta::ArchiveJob> successfulArchiveJob, cta::log::LogContext & lc
 void MigrationReportPacker::reportFailedJob(std::unique_ptr<cta::ArchiveJob> failedArchiveJob,
         const cta::exception::Exception &ex, cta::log::LogContext & lc){
   std::string failureLog = cta::utils::getCurrentLocalTime() + " " + cta::utils::getShortHostname() +
-      " " + ex.what();
+      " " + ex.getMessageValue();
   std::unique_ptr<Report> rep(new ReportError(std::move(failedArchiveJob), failureLog));
   cta::log::ScopedParamContainer params(lc);
   params.add("type", "ReportError");

tapeserver/castor/tape/tapeserver/daemon/RecallReportPacker.cpp

@@ -72,7 +72,7 @@ void RecallReportPacker::reportCompletedJob(std::unique_ptr<cta::RetrieveJob> su
 //------------------------------------------------------------------------------  
 void RecallReportPacker::reportFailedJob(std::unique_ptr<cta::RetrieveJob> failedRetrieveJob, const cta::exception::Exception & ex){
   std::string failureLog = cta::utils::getCurrentLocalTime() + " " + cta::utils::getShortHostname() +
-      " " + ex.what();
+      " " + ex.getMessageValue();
   std::unique_ptr<Report> rep(new ReportError(std::move(failedRetrieveJob), failureLog));
   cta::threading::MutexLocker ml(m_producterProtection);
   m_fifo.push(rep.release());