Merge pull request #20335 from bcoles/rubocop-Lint/DetectMetadataTrailingLeadingWhitespace

Rubocop: Lint/DetectMetadataTrailingLeadingWhitespace: Except BadChars

Author: adfoster-r7

lib/rubocop/cop/lint/detect_metadata_trailing_leading_whitespace.rb

@@ -20,7 +20,7 @@ module Lint
       class DetectMetadataTrailingLeadingWhitespace < Base
         extend AutoCorrector
         MSG = 'Metadata key or value has leading or trailing whitespace.'
-        EXEMPT_KEYS = %w[Description Payload].freeze
+        EXEMPT_KEYS = %w[Description Payload BadChars].freeze
 
         # Called for every method definition node
         # Only processes the initialize method