Undesired behavior with --format

[ornithocoder]

New Issue Checklist

• Updated SwiftLint to the latest version
• I searched for existing GitHub issues

Bug Report

As closure_end_indentation's description states, a closure end should have the same indentation as the line that started it, but this behavior conflicts with Xcode's indentation (^i) and SwiftLint's --format.

Below, a sample .swiftlint.yml file with the rule enabled, a swift file - file.swift - with one of the examples from swiftlint rules closure_end_indentation and the output, showing that the code is correct (closure ending with correct indentation, as imposed by the rule).

$ cat .swiftlint.yml
opt_in_rules:
  - closure_end_indentation

$ cat file.swift
SignalProducer(values: [1, 2, 3])
    .startWithNext { number in
        print(number)
    }

$ swiftlint lint
Loading configuration from '.swiftlint.yml'
Linting Swift files at paths 
Linting 'file.swift' (1/1)
Done linting! Found 0 violations, 0 serious in 1 file.

However, when the command swiftlint autocorrect --format runs, it autocorrects the file and reformats it, reverting the autocorrection applied by the rule.

$ swiftlint autocorrect --format
Loading configuration from '.swiftlint.yml'
Correcting Swift files at paths 
Correcting 'file.swift' (1/1)
Done correcting 1 file!

$ cat file.swift
SignalProducer(values: [1, 2, 3])
    .startWithNext { number in
        print(number)
}

As result, autocorrect has to run twice - first to format and then to correct the files -, adding a undesired delay to the build phase:

$ swiftlint autocorrect --format
$ swiftlint autocorrect

Ideally swiftlint autocorrect --format should first format and then autocorrect the files.

Environment

• SwiftLint version (run swiftlint version to be sure)? master
• Installation method used (Homebrew, CocoaPods, building from source, etc)? swift build
• Paste your configuration file:

opt_in_rules:
  - closure_end_indentation

• Are you using nested configurations? no.
• Which Xcode version are you using (check xcode-select -p)? 9.4.1