PM: tools: Fix sleepgraph syntax error

The sleepgraph tool currently fails:

  File "/usr/bin/sleepgraph", line 4155
    or re.match('psci: CPU(?P<cpu>[0-9]*) killed.*', msg)):
                                                         ^
SyntaxError: unmatched ')'

Fixes: 34ea427 ("PM: tools: sleepgraph: Recognize "CPU killed" messages")
Signed-off-by: David Woodhouse <[email protected]>
Reviewed-by: Wolfram Sang <[email protected]>
Signed-off-by: Rafael J. Wysocki <[email protected]>

tools/power/pm-graph/sleepgraph.py

@@ -4151,7 +4151,7 @@ def parseKernelLog(data):
  elif(re.match('Enabling non-boot CPUs .*', msg)):
  # start of first cpu resume
  cpu_start = ktime
- elif(re.match('smpboot: CPU (?P<cpu>[0-9]*) is now offline', msg)) \
+ elif(re.match('smpboot: CPU (?P<cpu>[0-9]*) is now offline', msg) \
  or re.match('psci: CPU(?P<cpu>[0-9]*) killed.*', msg)):
  # end of a cpu suspend, start of the next
  m = re.match('smpboot: CPU (?P<cpu>[0-9]*) is now offline', msg)