"Target length for Git commit summary lines.
If a number, characters in Summary: lines beyond this length are
displayed in the `vc-git-log-edit-summary-target-warning' face.
+A value of any other type means no highlighting.
By setting this to an integer around 50, you can improve the
compatibility of your commit messages with Git commands that
"Maximum length for Git commit summary lines.
If a number, characters in summary lines beyond this length are
displayed in the `vc-git-log-edit-summary-max-warning' face.
+A value of any other type means no highlighting.
It is good practice to avoid writing summary lines longer than
this because otherwise the summary line will be truncated in many