5366259 Avoid grep ambiguities

Authored and Committed by Alois Mahdal 4 years ago
    Avoid grep ambiguities
    
    Where regular expression is read from a variable and -e argument is not
    provided, the resulting call may end up being interpreted as grep
    argument.
    
    See also:
    
        https://github.com/koalaman/shellcheck/issues/1342
    
        
file modified
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