W. Trevor King 99dffe7070 scripts/maintenance/clean-aws.sh: Skip $tag_file for unset --tag-file ...

d541760f (scripts/maintenance/*-aws: Drop --workspace-dir,
2018-07-08, #34) cleaned up some related handling, but missed this.
Before this commit, an unset --tag-file would have resulted in a
useless $tag_file creation which was never written to, and the
"Deleting resources with the following tags:" line wouldn't actually
print the actual tag.json content.

2018-07-26 10:36:24 -07:00

..

maintenance

scripts/maintenance/clean-aws.sh: Skip $tag_file for unset --tag-file

2018-07-26 10:36:24 -07:00