old_contents: import os
  from django.conf import settings
  
  
  LIQUIBASE_JAR = getattr(settings, 'LIQUIBASE_JAR',
      os.path.join(os.path.dirname(__file__), 'vendor', 'liquibase.jar'))
  
  LIQUIBASE_DRIVERS = {
      'postgresql_psycopg2': ('postgresql', 'org.postgresql.Driver',
          os.path.join(os.path.dirname(__file__), 'vendor', 'connectors',
              'postgresql-jdbc3-8.2.jar')),
      'postgis': ( 'postgresql', 'org.postgresql.Driver',
          os.path.join(os.path.dirname(__file__), 'vendor', 'connectors',
              'postgresql-jdbc3-8.2.jar')),
      'mysql': ('mysql', 'com.mysql.jdbc.Driver',
          os.path.join(os.path.dirname(__file__), 'vendor', 'connectors',
              'mysql-connector-java-5.0.8-bin.jar')),
  }
  
  LIQUIBASE_DRIVERS.update(getattr(settings, 'LIQUIBASE_DRIVERS', {}))
  
  
new_contents: import os
  from django.conf import settings
  
  
  LIQUIBASE_JAR = getattr(settings, 'LIQUIBASE_JAR',
      os.path.join(os.path.dirname(__file__), 'vendor', 'liquibase.jar'))
  
  LIQUIBASE_DRIVERS = {
      'postgresql_psycopg2': ('postgresql', 'org.postgresql.Driver',
          os.path.join(os.path.dirname(__file__), 'vendor', 'connectors',
              'postgresql-jdbc3-8.2.jar')),
      'postgis': ('postgresql', 'org.postgresql.Driver',
          os.path.join(os.path.dirname(__file__), 'vendor', 'connectors',
              'postgresql-jdbc3-8.2.jar')),
      'mysql': ('mysql', 'com.mysql.jdbc.Driver',
          os.path.join(os.path.dirname(__file__), 'vendor', 'connectors',
              'mysql-connector-java-5.0.8-bin.jar')),
  }
  
  LIQUIBASE_DRIVERS.update(getattr(settings, 'LIQUIBASE_DRIVERS', {}))
  
  
subject: remove excessive whitespace