Extra spaces around equals sign breaks shared credentials file

[cullenmcdermott]

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Version of AWS SDK for Go?

1.15.74 (I think)

What issue did you see?

Over in hashicorp/terraform-provider-aws#6462 an issue is being discussed where the shared credentials file is not being read as a valid source for credentials. This appears to be caused by tools that 'pretty print' credentials into the file with extra padding around the =.

Steps to reproduce

A file formatted like this will fail

[saml]
aws_access_key_id        = <access key id>
aws_secret_access_key    = <secret access key>
aws_session_token        = <session token>
aws_security_token       = <security token>
x_principal_arn          = arn:aws:sts::<myarn>
x_security_token_expires = <datetime>

Removing the extra spaces will fix it

[saml]
aws_access_key_id = <access key id>
aws_secret_access_key = <secret access key>
aws_session_token = <session token>
aws_security_token = <security token>
x_principal_arn = arn:aws:sts::<myarn>
x_security_token_expires = <datetime>

This comment addresses the issue: hashicorp/terraform-provider-aws#6462 (comment)

[xibz]

Hello @cullenmcdermott, thank you for reaching out to us and reporting this. I've went ahead and created a PR, #2282, that fixes this issue. Please let us know if you have any additional question or issues.

[cullenmcdermott]

That was so fast! Thanks!