Disable PerceivedComplexity cop for Parser#parse

This method is now occasionally (but not reliably) failing the
PerceivedComplexity cop. Since the complexity of this method is hard to
control and the CyclomaticComplexity rule is already disabled for it, I'm
turning off the cop for this method only.

Author: urbanautomaton

lib/rspec/core/option_parser.rb

@@ -36,6 +36,7 @@ def parse(source=nil)
     # rubocop:disable MethodLength
     # rubocop:disable Metrics/AbcSize
     # rubocop:disable CyclomaticComplexity
+    # rubocop:disable PerceivedComplexity
     def parser(options)
       OptionParser.new do |parser|
         parser.banner = "Usage: rspec [options] [files or directories]\n\n"
@@ -270,6 +271,7 @@ def parser(options)
     # rubocop:enable Metrics/AbcSize
     # rubocop:enable MethodLength
     # rubocop:enable CyclomaticComplexity
+    # rubocop:enable PerceivedComplexity
 
     def add_tag_filter(options, filter_type, tag_name, value=true)
       (options[filter_type] ||= {})[tag_name] = value