usage: ecomm [-123f] file1 file2
-1 suppress output column of lines unique to file1
-2 suppress output column of lines unique to file2
-3 suppress output column of lines duplicated in file1 and file2.
-f fold case in line comparisons
This is intended more of an Erlang learning exercise than anything really practical.
Copyright 2017 by Anthony Howe. All rights reserved.
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