message: Fix grammar in configure.py
diff: @@ -1422,7 +1422,7 @@ def set_windows_build_flags(environ_cp):
  environ_cp, 'TF_OVERRIDE_EIGEN_STRONG_INLINE', 'Eigen strong inline',
  True,
  ('Would you like to override eigen strong inline for some C++ '
  - 'compilation to reduce the compiling time?'),
  + 'compilation to reduce the compilation time?'),
  'Eigen strong inline overridden.',
  'Not overriding eigen strong inline, '
  'some compilations could take more than 20 mins.'):
  