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423e5ad690
The generated `partitions.csv` needs to state the size of the flash
file. This so far used `ls -l | awk '{print $5}'` to achieve that, but
that is not robust, as the columns of `ls -l` depend on the tool and
system configuration used.
This commit replaces the call with `wc -c`, which should be more robust,
as `wc -c` behavior is POSIX specified.
Co-Authored-By: Karl Fessel <karl.fessel@ml-pa.com>
Co-Authored-By: Benjamin Valentin <benjamin.valentin@ml-pa.com>