Merge pull request #15 in CASA/casa-build-utils from CAS-13407 to master
* commit '10d410398bd1331e78ad1a910b409285a9fd9cba':
change 'raise ("Couldn't find casatestutils")' to 'print ("Couldn't find casatestutils")' since the runtests.py in casa-build-utils does not specifically need casatestutils