[cups.bugs] [LOW] STR #2512: Write printcap every 30s; prevents disk spin-down

[twaugh.redhat]

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[STR New]

In process_browse_data(), cupsdWritePrintcap() is called without checking
whether it is necessary.  In the common case, there is no need to call
that function.

The reason it is important is that the disk activity of updating the file
prevents any power saving from spinning down idle disks.

Link: http://www.cups.org/str.php?L2512
Version: 1.3.0