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zgrep: small improvements

Description

zgrep: small improvements

  • Use slightly more efficient method to determine the name of the program

called [1]

  • Use nicer form to loop over arguments [1]
  • add special support for --version along with -V previously added by kevans

Reported by: jilles@ [1]

Details

Provenance
baptAuthored on
Parents
rS333010: Fix mips32 build after r332951.
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