Try to make duplicate_os_log_reports.cpp more reliable.

It looks like some bots are failing with os log not giving any
output. This might be due to the system under test being heavy
load so the 2 minute window might not be large enough. This
patch makes the window larger in the hope that this test will
be more reliable.

rdar://problem/62141527

compiler-rt/test/asan/TestCases/Darwin/duplicate_os_log_reports.cpp

@@ -10,7 +10,7 @@
 
 // Check syslog output. We filter recent system logs based on PID to avoid
 // getting the logs of previous test runs.
-// RUN: log show --debug --last 2m  --predicate "processID == ${TEST_PID}" --style syslog > %t.process_syslog_output.txt
+// RUN: log show --debug --last 5m  --predicate "processID == ${TEST_PID}" --style syslog > %t.process_syslog_output.txt
 // RUN: FileCheck %s -input-file=%t.process_syslog_output.txt
 #include <cassert>
 #include <cstdio>