indentation_width is not working well with multiple line if and guard

[miku1958]

New Issue Checklist

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

Describe the bug

For example:

Complete output when running SwiftLint, including the stack trace and command used

Swift package plugin

Environment

• SwiftLint version: 0.51.0
• Installation method used: SPM
• Paste your configuration file:

opt_in_rules:
  - indentation_width

indentation_width:
   severity: warning 
   indentation_width: 4
   include_comments: false
   include_compiler_directives: false
   trueinclude_multiline_strings: false

• Are you using nested configurations?
  If so, paste their relative paths and respective contents.
• Which Xcode version are you using (check xcodebuild -version)?
• Do you have a sample that shows the issue? Run echo "[string here]" | swiftlint lint --no-cache --use-stdin --enable-all-rules
  to quickly test if your example is really demonstrating the issue. If your example is more
  complex, you can use swiftlint lint --path [file here] --no-cache --enable-all-rules.

// This triggers a violation:
        guard let startSubvalue = subvalue(at: gesture.startLocation, minutes: minutes),
              let currentSubvalue = subvalue(at: gesture.location, minutes: minutes) else {
            return nil
        }

[shmilyQin]

Facing the same issue. could you tell me whether you fix it? Thanks.

[SimplyDanny]

I suppose this is not straightforward to fix. I'm not going to invest energy into this in the near future. But everyone is free to propose a PR. 😉