Hide password in the log

[sakama]

Current implementation is showing password in the log.

parent directory sftp://sftp-user:[email protected]/home/sftp-user exists there
Could not create folder "sftp://sftp-user:[email protected]/home/sftp-user"

I want to hide for the security reason and changed logging logic to hide them.

parent directory sftp://ec2-user:***@example.com/home/ec2-user exists there
Could not create folder "sftp://sftp-user:***@example.com/home/ec2-user2"

FileObject.getPublicURIString() is already used at other part.

[civitaspo]

Looks good for me.

[coveralls]

Coverage remained the same at 72.455% when pulling f94e428 on sakama:mask_password into 7834176 on civitaspo:master.

[sakama]

Thank you!

[civitaspo]

shipped \w https://rubygems.org/gems/embulk-output-sftp/versions/0.0.9