bug#60038: grep 2.20 - invalid option with search pattern "-/"

[Daniel Schättgen]

Hello,

When searching for a pattern that includes "-/", the pattern is interpreted as 
option:

[dsg@db01]# grep "-" example.txt
--/--
[dsg@db01]# grep "/" example.txt
--/--
[dsg@db01]# grep "-/" example.txt
grep: invalid option -- '/'
Usage: grep [OPTION]... PATTERN [FILE]...
Try 'grep --help' for more information.
[dsg@db01]# grep --version
grep (GNU grep) 2.20
Copyright (C) 2014 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

Written by Mike Haertel and others, see 
<http://git.sv.gnu.org/cgit/grep.git/tree/AUTHORS>.

Kind regards
Daniel

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