tblext.py fixing: 'stream_ind' not-inintialized python issue; app START time message;

Change-Id: Ib17c49daf7c118aa83025d805d707bf3d8e1c88f


[ROCm/rocprofiler commit: 708edfe989]

projects/rocprofiler/bin/tblextr.py

@@ -566,7 +566,7 @@ begin_ts_file = indir + '/begin_ts_file.txt'
 if os.path.isfile(begin_ts_file):
   with open(begin_ts_file, mode='r') as fd:
     START_US=int(fd.readline()) / 1000
-    print('Appilcation START-ts found (' + START_US + 'us)')
+    print('Appilcation START-ts found (' + str(START_US) + 'us)')
 
 if re.search(r'\.csv$', outfile):
   csvfile = outfile