Patch for "unexpected keyword argument 'snapshotRequested'"

[kallu]

Issue #, if available: #130

Description of changes:
Adding support for 'snapshotRequired' argument similar to one already in Java -plugin.
aws-cloudformation/cloudformation-cli-java-plugin#316

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[ammokhov]

Issue #, if available: #130

Description of changes:
Adding support for 'snapshotRequired' argument similar to one already in Java -plugin.
aws-cloudformation/cloudformation-cli-java-plugin#316

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

thanks for the PR, this issue should be fixed by #127 but the update has not been released yet.

[ammokhov]

overall looks good but need to improve code coverage

[kallu]

I think is now obsolete as issue has been already fixed in cloudformation-cli-python-lib 2.1.3.

[tomwwright]

I'm encountering this issue currently cloudformation-cli-python-lib 2.1.3 -- how exactly is it fixed?

EDIT: #130

[kallu]

The First thing to verify is you have version 2.1.3 in requirements.txt as cfn init is not yet updated and by default will use an older version. After updating cloudformation-cli-python-lib requirement to 2.1.3 it worked for me.