Hiltjo Posthuma 949f930280 split: fixes ...

- -b argument required, don't allow -b <= 0.
- -l argument required, don't allow -l <= 0.
- usage() and argument parsing: sort flags.
- don't write 0 size file, get rid of goto reproducable with:
  printf 'a' | split -b 1.
- close FILE *in if != stdin.
- mark split as finished in README.
- codestyle fixes.

2015-02-01 16:30:12 +01:00

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