The summary + description format in Git means that this convention is (good):
- Summary should be no more than 70 characters
- The following additional description may follow an empty line after a summary.
The command line is equivalent to entering a "brief" as a summary and "do this and what" as a description:
git commit -m 'brief summary
doing this and that'
Or on one line in bash:
git commit -m 'brief summary'$'\n\n''doing this and that'
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