Spack Bugfixes

• Allow locks to work under high contention (#27846)
• Improve error messages from clingo (#27707 #27970)
• Respect package permissions for sbang (#25764)
• Fix --enable-locks behavior (#24675)
• Fix log-format reporter ignoring install errors (#25961)
• Fix overloaded argparse keys (#27379)
• Allow style commands to run with targets other than develop (#27472)
• Log lock messages to debug level, instead of verbose level (#27408)
• Handle invalid unicode while logging (#21447)
• spack audit: fix API calls to variants (#27713)
• Provide meaningful message for empty environment installs (#28031)
• Added opensuse leap containers to spack containerize (#27837)
• Revert "patches: make re-applied patches idempotent" (#27625)
• MANPATH can use system defaults (#21682)
• Add setdefault subcommand to spack module tcl (#14686)
• Regenerate views when specs already installed (#28113)

Package bugfixes

• Fix external package detection for OpenMPI (#27255)
• Update the UPC++ package to 2021.9.0 (#26996)
• Added py-vermin v1.3.2 (#28072)