winebarrel / ridgepole / 1147

97%

0.9: 97%

Pull #258

travis-ci

Suppress deprecation warnings of `Psych.safe_load` args in Ruby 2.6

The interface of `Psych.safe_load` will change from Ruby 2.6.
https://github.com/ruby/ruby/commit/1c92766bf

This PR suppresses the following wargnins in Ruby 2.6.0-dev.

```console
warning: Passing whitelist_classes with the 2nd argument of
Psych.safe_load is deprecated. Use keyword argument like
Psych.safe_load(yaml, whitelist_classes: ...) instead.
warning: Passing whitelist_symbols with the 3rd argument of
Psych.safe_load is deprecated. Use keyword argument like
Psych.safe_load(yaml, whitelist_symbols: ...) instead.
warning: Passing aliases with the 4th argument of Psych.safe_load is
deprecated. Use keyword argument like Psych.safe_load(yaml, aliases:
...) instead.
warning: Passing filename with the 5th argument of Psych.safe_load is
deprecated. Use keyword argument like Psych.safe_load(yaml, filename:
...) instead.
```

```console
% ruby -v
ruby 2.6.0dev (2018-10-21 trunk 65252) [x86_64-darwin17]
```

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