According to https://github.com/hashicorp/errwrap
'{{err}}' has to be used instead of '%s'
Without this patch, error output from terraform is missing important information:
* aws_cloudwatch_log_group.logs: Error Getting CloudWatch Logs Tag List: %s
With this patch, I get the important information. E.g.:
* aws_cloudwatch_log_group.logs: Error Getting CloudWatch Logs Tag List: AccessDeniedException: User: arn:aws:sts::XYZ:assumed-role/AAA-BBB-CCC/terraform-assuming-role-assume-role-ReadOnly is not authorized to perform: logs:ListTagsLogGroup on resource: arn:aws:logs:us-east-1:XYZ:log-group:logs:log-stream:
Fixes#7543 where creating a CloudWatch Group, then deleting it from the
console will cause no action on refresh / plan
```
% make testacc TEST=./builtin/providers/aws TESTARGS='-run=TestAccAWSCloudWatchLogGroup_'
==> Checking that code complies with gofmt requirements...
go generate $(go list ./... | grep -v /terraform/vendor/)
TF_ACC=1 go test ./builtin/providers/aws -v
-run=TestAccAWSCloudWatchLogGroup_ -timeout 120m
=== RUN TestAccAWSCloudWatchLogGroup_importBasic
--- PASS: TestAccAWSCloudWatchLogGroup_importBasic (18.10s)
=== RUN TestAccAWSCloudWatchLogGroup_basic
--- PASS: TestAccAWSCloudWatchLogGroup_basic (17.34s)
=== RUN TestAccAWSCloudWatchLogGroup_retentionPolicy
--- PASS: TestAccAWSCloudWatchLogGroup_retentionPolicy (49.81s)
=== RUN TestAccAWSCloudWatchLogGroup_multiple
--- PASS: TestAccAWSCloudWatchLogGroup_multiple (23.74s)
=== RUN TestAccAWSCloudWatchLogGroup_disappears
--- PASS: TestAccAWSCloudWatchLogGroup_disappears (15.78s)
PASS
ok github.com/hashicorp/terraform/builtin/providers/aws 124.789s
```
julius-bonial