Alternative line numbering and comment fix. #1
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Added alternative version for line numbering per file. It might have issues with multi-byte encoding as
ARGF#pos
returns position in bytes. To work properly in that casesString#bytesize
can be used instead of regularString#size
.In addition fixed comment for removing consecutive blank lines. I was thinking for a while how that can remove consecutive duplicate lines and finally realized that you speaking about blank lines.