warning: deleting branch 'custom' that has been merged to
'refs/remotes/origin/custom', but not yet merged to HEAD.
Deleted branch custom (was b63ab7d).
Deleted branch hotfix (was 340cca0).
Deleted branch mgit (was 86b4004).
error: The branch 'develop_rtl' is not fully merged.
If you are sure you want to delete it, run 'git branch -D develop_rtl'.