steampipe query --output csv should not add a blank line at the end of file

[e-gineer]

CSV output adds a blank line at the end, which is annoying for processing. It should not be there.

Current behavior:

/tmp $ steampipe query --output csv "select name from aws_s3_bucket"
name
my-bucket
another-bucket

/tmp $

Expected behavior:

/tmp $ steampipe query --output csv "select name from aws_s3_bucket"
name
my-bucket
another-bucket
/tmp $

First spotted here from @pauldougan

[e-gineer]

We have code that adds a blank line between CSV (or other) output types when multiple queries are run:

/tmp/crap $ steampipe query *.sql --output csv
name
my_bucket
another_bucket

instance_id
i-abcd1234

steampipe/pkg/query/queryexecute/execute.go

Lines 71 to 73 in 5193c70

	if showBlankLineBetweenResults() {
	fmt.Println()
	}

It should only show blank lines between results, not after the last (and possibly only) result.