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Six years ago in 55a5a46c235a30bf024fb2301066553953701cc5 apt-get
learned to disable locking if run as normal user and show a message.
Helmut Grohne rightly suggests on IRC now that there isn't much point in
getting the locks for root either as the output isn't in any way more
authoritive than without locking given that after this call the lock is
freed and any action can sneak in before we make the next call. So we
exchange no benefit for the disavantage of blocking real calls. This can
be especially confusing with the aliases --no-act and --just-print.
We do not print the message we print for users through as the non-root
users can be confronted with a lot more difference via unreadable files.
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