Usage of ./gruploader:
-cloud string
Which cloud do you use for git? (default "github")
-f string
File path to upload.
-overwrite
Overwrite release asset if it's already exist.
-repo string
repo, e.g., 'pkg6/gruploader'.
-retry uint
How many times to retry if error occur. (default 2)
-tag string
Git tag to identify a Release in repo.