logging_UserCrash: expect %P in the core pattern

We're switching from %p to %P, so update the test baseline accordingly.

BUG=chromium:351568
TEST=`cbuildbot amd64-generic-full` passes # linux-3.10
TEST=`cbuildbot x86-alex-release` passes   # linux-3.4
TEST=`cbuildbot link-release` passes       # linux-3.8
CQ-DEPEND=CL:190010

Change-Id: Ic5daf9e357b268097acca1c25a01e95fb304eced
Previous-Reviewed-on: https://chromium-review.googlesource.com/190011
(cherry picked from commit 6aa1353a89fff6ddedff9b82fa5b465ac7b12d7c)
Reviewed-on: https://chromium-review.googlesource.com/190532
Reviewed-by: Ben Chan <benchan@chromium.org>
Commit-Queue: Mike Frysinger <vapier@chromium.org>
Tested-by: Mike Frysinger <vapier@chromium.org>
diff --git a/client/site_tests/logging_UserCrash/logging_UserCrash.py b/client/site_tests/logging_UserCrash/logging_UserCrash.py
index 3d49be9..9f0c0fc 100644
--- a/client/site_tests/logging_UserCrash/logging_UserCrash.py
+++ b/client/site_tests/logging_UserCrash/logging_UserCrash.py
@@ -30,7 +30,7 @@
         # Turn off crash filtering so we see the original setting.
         self.disable_crash_filtering()
         output = utils.read_file(self._CORE_PATTERN).rstrip()
-        expected_core_pattern = ('|%s --user=%%p:%%s:%%u:%%e' %
+        expected_core_pattern = ('|%s --user=%%P:%%s:%%u:%%e' %
                                  self._CRASH_REPORTER_PATH)
         if output != expected_core_pattern:
             raise error.TestFail('core pattern should have been %s, not %s' %