* build/generator/gen_base.py
  (GeneratorBase.__init__): Use ConfigParser.readfp() since .read() will mask
     ENOENT errors.

Suggested by: Masaru Tsuchiyama
              me

git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1515104 13f79535-47bb-0310-9956-ffa450edef68