Recommended update for spec-cleaner

This recommended update updates spec-cleaner from 0.6.4 to 0.6.8 and includes the following fixes and improvements:
- Update copyright line to match current SUSE one
- Excludes for java qmake gem_ and kde macros
- Cleanup conflicts lines properly
- Cleanup kernel subpkgs properly
- Work with spaces in version string
- Fix vertical spacing around nested conditionals
- Fix issue with bogus %lang detection

Fixed bugs
Selected Binaries
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