Hiltjo Posthuma 97fb4a1f9c grep: improvements ...

improvements:
- improve statuscode behaviour
  - don't exit if a file in a series fails. exit 2 if an error occured
    in a file series. don't exit if there is a read error (like: grep
     input file is a directory).
- use agetline instead of agets().

with the simple test: time seq 1 100000000 | grep 'a'
its 12 seconds (from 24 seconds) on my machine.

Signed-off-by: Hiltjo Posthuma <hiltjo@codemadness.org>

2014-06-01 18:02:01 +01:00

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