Various sniffs: set redundant default values #264
Merged
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Modernize/Dirname: set redundant default values
Universal/DisallowInlineTabs: set redundant default values
Universal/PrecisionAlignment: set redundant default values
These variables are only accessed within conditions and those conditions already sufficiently ensure that the variables will be set for the conditions path.
Even so, PHPStan cannot handle this, so we may as well declare sensible defaults for each of those variables to make things more explicit.