qingxp9

#This patch works for gcc6, gcc7, and is from http://yate.null.ro/mantis/view.php?id=416
--- a/mbts/GPRS/MSInfo.cpp
+++ b/mbts/GPRS/MSInfo.cpp
@@ -638,7 +638,7 @@
         if (msPCHDowns.size() > 1) {
             std::ostringstream os;
             msDumpChannels(os);
-            GPRSLOG(INFO,GPRS_MSG|GPRS_CHECK_OK) << "Multislot assignment for "<<this<<os;
+            GPRSLOG(INFO,GPRS_MSG|GPRS_CHECK_OK) << "Multislot assignment for "<<this<<(!os.fail());
         }