[PATCH] pinky,users,who: Optimize read_utmp invocation

[Bruno Haible]

In the past, coreutils did not need to pass the option READ_UTMP_USER_PROCESS
to read_utmp(), since it was testing IS_USER_PROCESS of each entry anyway.
The only effect would have been to save some amount of memory allocation.

But now, it also saves from making extra system calls to determine the
boot time. Thus it is worth using now.

Find attached a patch.

Bruno

0001-pinky-users-who-Optimize-read_utmp-invocation.patch
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