sort: support percent arguments to -S option #7181
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Add support for parsing percent arguments to the `-S` option. The given percentage specifies a percentage of the total physical memory. For Linux, the total physical memory is read from `/proc/meminfo`. The feature is not yet implemented for other systems. In order to implement the feature, the `uucore::parser::parse_size` function was updated to recognize strings of the form `NNN%`. Fixes uutils#3500
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Add support for parsing percent arguments to the
-Soption. The givenpercentage specifies a percentage of the total physical memory. For
Linux, the total physical memory is read from
/proc/meminfo. Thefeature is not yet implemented for other systems.
In order to implement the feature, the
uucore::parser::parse_sizefunction was updated to recognize strings of the form
NNN%.Fixes #3500