- '%aD': author date, RFC2822 style
- '%ar': author date, relative
- '%at': author date, UNIX timestamp
+- '%ai': author date, ISO 8601 format
- '%cn': committer name
- '%ce': committer email
- '%cd': committer date
- '%cD': committer date, RFC2822 style
- '%cr': committer date, relative
- '%ct': committer date, UNIX timestamp
+- '%ci': committer date, ISO 8601 format
- '%e': encoding
- '%s': subject
- '%b': body
- '%Creset': reset color
- '%m': left, right or boundary mark
- '%n': newline
-