Revision 1.4 set access for all sensitive files in /proc/<PID> to mode 0 if a process's uid or gid has changed, but the /proc/<PID> directory itself was also set to mode 0.  Assuming this doesn't open any security holes, open access to the /proc/<PID> directory for users other than root to read or search the directory.
Revision 1.4 set access for all sensitive files in /proc/<PID> to mode 0
if a process's uid or gid has changed, but the /proc/<PID> directory
itself was also set to mode 0.  Assuming this doesn't open any
security holes, open access to the /proc/<PID> directory for users
other than root to read or search the directory.

Reviewed by:	des (back in February)
MFC after:	3 weeks

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