get rid of backtrace cleaning

lib/sinatra/base.rb

@@ -648,21 +648,11 @@ def error_block!(*keys)
     end
 
     def dump_errors!(boom)
-      backtrace = clean_backtrace(boom.backtrace)
       msg = ["#{boom.class} - #{boom.message}:",
-        *backtrace].join("\n ")
+        *boom.backtrace].join("\n ")
       @env['rack.errors'].puts(msg)
     end
 
-    def clean_backtrace(trace)
-      return trace unless settings.clean_trace?
-
-      trace.reject { |line|
-        line =~ /lib\/sinatra.*\.rb/ ||
-          (defined?(Gem) && line.include?(Gem.dir))
-      }.map! { |line| line.gsub(/^\.\//, '') }
-    end
-
     class << self
       attr_reader :routes, :before_filters, :after_filters, :templates, :errors
 
@@ -1053,7 +1043,6 @@ def caller_locations
     set :raise_errors, Proc.new { test? }
     set :dump_errors, Proc.new { !test? }
     set :show_exceptions, Proc.new { development? }
-    set :clean_trace, true
     set :sessions, false
     set :logging, false
     set :method_override, false

test/settings_test.rb

@@ -135,52 +135,6 @@ def foo=(value)
     end
   end
 
-  describe 'clean_trace' do
-    def clean_backtrace(trace)
-      Sinatra::Base.new.send(:clean_backtrace, trace)
-    end
-
-    it 'is enabled on Base' do
-      assert @base.clean_trace?
-    end
-
-    it 'is enabled on Application' do
-      assert @application.clean_trace?
-    end
-
-    it 'does nothing when disabled' do
-      backtrace = [
-        "./lib/sinatra/base.rb",
-        "./myapp:42",
-        ("#{Gem.dir}/some/lib.rb" if defined?(Gem))
-      ].compact
-
-      klass = Class.new(Sinatra::Base)
-      klass.disable :clean_trace
-
-      assert_equal backtrace, klass.new.send(:clean_backtrace, backtrace)
-    end
-
-    it 'removes sinatra lib paths from backtrace when enabled' do
-      backtrace = [
-        "./lib/sinatra/base.rb",
-        "./lib/sinatra/compat.rb:42",
-        "./lib/sinatra/main.rb:55 in `foo'"
-      ]
-      assert clean_backtrace(backtrace).empty?
-    end
-
-    it 'removes ./ prefix from backtrace paths when enabled' do
-      assert_equal ['myapp.rb:42'], clean_backtrace(['./myapp.rb:42'])
-    end
-
-    if defined?(Gem)
-      it 'removes gem lib paths from backtrace when enabled' do
-        assert clean_backtrace(["#{Gem.dir}/some/lib"]).empty?
-      end
-    end
-  end
-
   describe 'run' do
     it 'is disabled on Base' do
       assert ! @base.run?