Todd Gamblin 04aec9d6f8 core: add check for conflicting top-level fetch attributes in packages ... - ensure that packages can't have more than one of git, hg, svn, or url		2018-07-25 23:10:10 -07:00
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spack	core: add check for conflicting top-level fetch attributes in packages	2018-07-25 23:10:10 -07:00