* test/ruby/envutil.rb (assert_pattern_list) Renamed from
  assert_regexp_list.
  Show multiline string in multi lines.

* test/-ext-/bug_reporter/test_bug_reporter.rb: Use
  assert_pattern_list.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47938 b2dd03c8-39d4-4d8f-98ff-823fe69b080e