Update to ruby/mspec@fef9b81

spec/mspec/tool/tag_from_output.rb

@@ -30,7 +30,7 @@ output.slice_before(NUMBER).select { |number, *rest|
   if spec_file
     spec_file = spec_file[SPEC_FILE, 1] or raise
   else
-    if error_line =~ /^(\w+)#(\w+) /
+    if error_line =~ /^(\w+)[#\.](\w+) /
       module_method = error_line.split(' ', 2).first
       file = "#{$1.downcase}/#{$2}_spec.rb"
       spec_file = ['spec/ruby/core', 'spec/ruby/library', *Dir.glob('spec/ruby/library/*')].find { |dir|