Reported-by: Helge Kreutzmann <debian@helgefjell.de>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
Perform various control operations on a queue, including deletion.
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.SS Semaphore sets
-System V semaphores allow processes to synchronize their actions
+System V semaphores allow processes to synchronize their actions.
System V semaphores are allocated in groups called sets;
each semaphore in a set is a counting semaphore.
POSIX semaphores provide an alternative API for achieving the same result;