setting is silently ignored if portable keystroke input
is not available.
+log.abbrevCommit::
+ If true, makes linkgit:git-log[1], linkgit:git-show[1], and
+ linkgit:git-whatchanged[1] assume `\--abbrev-commit`. You may
+ override this option with `\--no-abbrev-commit`.
+
log.date::
Set the default date-time mode for the 'log' command.
Setting a value for log.date is similar to using 'git log''s