[PATCH v2 1/1] bundle: cleanup lock files on error

From: =?UTF-8?q?Ga=C3=ABl=20Lhez?= When an user tries to create an empty bundle via `git bundle create ` where `` resolves to an empty list (for example, like `master..master`), the command fails and warns the user about how it does not want to create empty bundle. However, the `.lock` file

[PATCH 1/1] bundle: refuse to create empty bundle

From: =?UTF-8?q?Ga=C3=ABl=20Lhez?= When an user tries to create an empty bundle via `git bundle create ` where `` resolves to an empty list (for example, like `master..master`), the command fails and warns the user about how it does not want to create empty bundle. However, the `.lock` file