hdf5_msb

Merge pull request #1878 in HDFFV/hdf5 from ~BYRN/hdf5_adb:hdf5_1_8 to hdf5_1_8

* commit 'de2119f39e3254cd034e2f8734f8ffc68d5bea65':
  Correct test logic
  Merge mostly whitespace changes from 1.10 branch
  Mostly whitespace plus fix broken perf_serial
  Cleanup of duplicate symbols