Enable python3 compatible strings in biosnoop

Signed-off-by: Brenden Blanco <[email protected]>

tools/biosnoop.py

@@ -154,7 +154,7 @@ def print_event(cpu, data, size):
  if event.rwflag == 0:
  rwflg = "R"
 
- if not re.match('\?', event.name):
+ if not re.match(b'\?', event.name):
  val = event.sector
 
  if start_ts == 0: