hdf5_der

Merge pull request #776 in HDFFV/hdf5 from ~LRKNOX/hdf5_lrk:develop to develop
Add check for realtimeOutput environment variable set containing
characters to indicate test output should be piped through tee to chklog
files in order to send output to stdout as tests run instead of waiting
to cat chklog file to stdout when each set of tests is completed.  This
should stop buildbot from timing out when a test set doesn't complete in
less than 20 minutes.

* commit '10a9fb5319ab0dcd0e14e40a8ab5c38e8211f764':
  Remove extra '&'s that cause syntax errors on Macs.