Nick Kralevich pointed out that it was rather problematic to check
capabilities when reading some pstore files. Instead, opt for a more
configurable DAC approach, but retain the general protection by making the
pstorefs root directory mode 0750. It was 0755, but most crash-handlers
will also be performing unlink operations (which DAC would require a
root uid perm for already), so this shouldn't affect anyone, but rather
make permissions more flexible.


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