are shown as if 'short' were given, otherwise no ref names are
shown. The default option is 'short'.
+--decorate-refs=<pattern>::
+--decorate-refs-exclude=<pattern>::
+ If no `--decorate-refs` is given, pretend as if all refs were
+ included. For each candidate, do not use it for decoration if it
+ matches any patterns given to `--decorate-refs-exclude` or if it
+ doesn't match any of the patterns given to `--decorate-refs`.
+
--source::
Print out the ref name given on the command line by which each
commit was reached.