Bump gopkg.in/yaml.v2 from 2.2.2 to 2.2.8 in /cobra-0.0.5

[dependabot[bot]]

Bumps gopkg.in/yaml.v2 from 2.2.2 to 2.2.8.

Commits

• 53403b5 Optimize cases with long potential simple_keys (#555)
• 1f64d61 Fix issue in simple_keys improvements (#548)
• a95acef Update travis config to use latest go versions (#540)
• 36babc3 Port stale simple_keys fix to v2 (#543)
• 770b8da Fix Decorder doc typo (#494)
• 1ed5951 Add Go 1.10-13 to travis setup.
• f90ceb4 Fix check for non-map alias merging in v2 (#529)
• 970885f Trivial style tuning on last change.
• f221b84 Improve heuristics preventing CPU/memory abuse (#515)
• bb4e33b Add logic to catch cases of alias abuse.
• Additional commits viewable in compare view

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