i#5199 warmup trace: updated test regex

Updated test regex to handle case where tracing windows occur after the
"Hello, World!" message.

Issue: #5199

clients/drcachesim/tests/offline-L0-filter-until-instrs-2.templatex

@@ -5,7 +5,43 @@ Hit tracing window #0 filter limit: switching to full trace.
 Hit tracing window #0 limit: disabling tracing.
 Hit retrace threshold: enabling tracing for window #1.
 [^W]*
-Hello, world!
-.*
 Basic counts tool results:
-.*
+Total counts:
+     .* total \(fetched\) instructions
+     .* total unique \(fetched\) instructions
+     .* total non-fetched instructions
+     .* total prefetches
+     .* total data loads
+     .* total data stores
+     .* total icache flushes
+     .* total dcache flushes
+           1 total threads
+     .* total scheduling markers
+     .* total transfer markers
+     .* total function id markers
+     .* total function return address markers
+     .* total function argument markers
+     .* total function return value markers
+           0 total physical address \+ virtual address marker pairs
+           0 total physical address unavailable markers
+     .* total other markers
+     .* total encodings
+Thread .* counts:
+     .* \(fetched\) instructions
+     .* unique \(fetched\) instructions
+     .* non-fetched instructions
+     .* prefetches
+     .* data loads
+     .* data stores
+     .* icache flushes
+     .* dcache flushes
+     .* scheduling markers
+     .* transfer markers
+     .* function id markers
+     .* function return address markers
+     .* function argument markers
+     .* function return value markers
+           0 physical address \+ virtual address marker pairs
+           0 physical address unavailable markers
+     .* other markers
+     .* encodings