Improved scheduler log messages (MythTV#969)

The comparing message has been updated to specify
both programs, and to show the channels for those
programs.

The "groupmplexid's" message has been updated to
separate the words which have been smashed
together.

Resolves: MythTV#967

mythtv/programs/mythbackend/scheduler.cpp

@@ -1095,7 +1095,9 @@ bool Scheduler::FindNextConflict(
             continue;
 
         if (debugConflicts)
-            msg = QString("comparing with '%1' ").arg(q->GetTitle());
+            msg = QString("comparing '%1' on %2 with '%3' on %4")
+                .arg(p->GetTitle()).arg(p->GetChanNum())
+                .arg(q->GetTitle()).arg(q->GetChanNum());
 
         if (p->GetInputID() != q->GetInputID() && !ignoreinput)
         {
@@ -1145,7 +1147,7 @@ bool Scheduler::FindNextConflict(
         {
             LOG(VB_SCHEDULE, LOG_INFO, msg);
             LOG(VB_SCHEDULE, LOG_INFO,
-                QString("  cardid's: [%1], [%2] Share an input group"
+                QString("  cardid's: [%1], [%2] Share an input group, "
                         "mplexid's: %3, %4")
                      .arg(p->GetInputID()).arg(q->GetInputID())
                      .arg(p->m_mplexId).arg(q->m_mplexId));