--no-ff::
Create a merge commit even when the merge resolves as a
fast-forward. This is the default behaviour when merging an
- annotated (and possibly signed) tag.
+ annotated (and possibly signed) tag that is not stored in
+ its natural place in 'refs/tags/' hierarchy.
--ff-only::
Refuse to merge and exit with a non-zero status unless the
current `HEAD` is already up to date or the merge can be
resolved as a fast-forward.
+-S[<keyid>]::
+--gpg-sign[=<keyid>]::
+ GPG-sign the resulting merge commit. The `keyid` argument is
+ optional and defaults to the committer identity; if specified,
+ it must be stuck to the option without a space.
+
--log[=<n>]::
--no-log::
In addition to branch names, populate the log message with