Massimiliano Culpo 8d3a153331 Skip external specs when creating mirrors (#8084) ... fixes #8083 External specs are supposed to be installed already, so there's no need to try to download a tarball for them.		2018-06-01 12:27:11 -07:00
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spack	Skip external specs when creating mirrors (#8084)	2018-06-01 12:27:11 -07:00