Michael Wehr 2532fc3ca3 switch to fork/exec/dup2 instead of popen ...

To get rid of the problems from having to escape certain special chars
when using popen to call the find and du system commands, on suggestion
of N-R-K this switches popen with a fork/exec/dup2 based approach.
See https://github.com/jarun/advcpmv/pull/14#issuecomment-1035880454 and
https://github.com/jarun/advcpmv/pull/14#issuecomment-1035892465.

2022-02-13 15:50:06 +01:00

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