old_contents: """
  Copyright 2010 Jason Chu, Dusty Phillips, and Phil Schalm
  
  Licensed under the Apache License, Version 2.0 (the "License");
  you may not use this file except in compliance with the License.
  You may obtain a copy of the License at
  
    http://www.apache.org/licenses/LICENSE-2.0
  
  Unless required by applicable law or agreed to in writing, software
  distributed under the License is distributed on an "AS IS" BASIS,
  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  See the License for the specific language governing permissions and
  limitations under the License.
  """
  from django import forms
  from preferences.models import Preference
  
  class PreferencesForm(forms.Form):
      def __init__(self, *args, **kwargs):
          super(PreferencesForm, self).__init__(*args, **kwargs)
          for preference in Preference.objects.all():
              self.fields[preference.name] = forms.CharField()
  
new_contents: """
  Copyright 2010 Jason Chu, Dusty Phillips, and Phil Schalm
  
  Licensed under the Apache License, Version 2.0 (the "License");
  you may not use this file except in compliance with the License.
  You may obtain a copy of the License at
  
    http://www.apache.org/licenses/LICENSE-2.0
  
  Unless required by applicable law or agreed to in writing, software
  distributed under the License is distributed on an "AS IS" BASIS,
  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  See the License for the specific language governing permissions and
  limitations under the License.
  """
  import os.path
  from django import forms
  from preferences.models import Preference
  
  class PreferencesForm(forms.Form):
      def __init__(self, *args, **kwargs):
          super(PreferencesForm, self).__init__(*args, **kwargs)
          for preference in Preference.objects.all():
              self.fields[preference.name] = forms.CharField()
  
      def clean(self):
          # Apparently clean__projects_directory doesn't work with dynamic forms
          if not self.cleaned_data['projects_directory'].endswith(os.path.sep):
              self.cleaned_data['projects_directory'] += os.path.sep
          return self.cleaned_data
  
subject: Append a trailing newline to the project directory