A simple program to print out checksums for lines of characters.
> typo-guard [--columns/-c <column-limit>]
typo-guard accepts input from stdandard input, and outputs to standard output. typo-guard doesn't currently handle unicode.
When handling text with a terminal, typo-guard will continuously recompute
the checksum for a line, and output it with the line text.
<MurMurHash> " " <text>
MurMurHash is formatted as Base16.
Inspired by https://github.com/mpalmer/typo-guard