Fix missing colon in test environment

[tmadlener]

BEGINRELEASENOTES

• Mistakenly dropped colon in Make sure root is on LD_LIBRARY_PATH for python tests #236

ENDRELEASENOTES

I am not entirely sure how this got past our CI tbh.

[andresailer]

I am not entirely sure how this got past our CI tbh.

$ENV{LD_LIBRARY_PATH} is something like

/cvmfs/sft.cern.ch/lcg/releases/MCGenerators/thepeg/2.2.1-de911/x86_64-centos7-gcc8-opt/lib/ThePEG:/cvmfs/sft.cern.ch/lcg/releases/MCGenerators/herwig++/7.2.1-6e809/x86_64-centos7-gcc8-opt/lib/Herwig:/cvmfs/sft.cern.ch/lcg/views/LCG_99python2/x86_64-centos7-gcc8-opt/lib/python2.7/site-packages/torch/lib:/cvmfs/sft.cern.ch/lcg/views/LCG_99python2/x86_64-centos7-gcc8-opt/lib/python2.7/site-packages/tensorflow_core:/cvmfs/sft.cern.ch/lcg/releases/java/8u222-884d8/x86_64-centos7-gcc8-opt/jre/lib/amd64:/cvmfs/sft.cern.ch/lcg/views/LCG_99python2/x86_64-centos7-gcc8-opt/lib64:/cvmfs/sft.cern.ch/lcg/views/LCG_99python2/x86_64-centos7-gcc8-opt/lib:/cvmfs/sft.cern.ch/lcg/releases/gcc/8.3.0-cebb0/x86_64-centos7/lib:/cvmfs/sft.cern.ch/lcg/releases/gcc/8.3.0-cebb0/x86_64-centos7/lib64:/cvmfs/sft.cern.ch/lcg/releases/binutils/2.30-e5b21/x86_64-centos7/lib:/cvmfs/sft.cern.ch/lcg/releases/R/3.6.3-26932/x86_64-centos7-gcc8-opt/lib64/R/library/readr/rcon

We don't care about the first entry that is concatenated with the ROOT one, and we get the root one from the view lib folder anyway, right?

[tmadlener]

Ah yes, that makes sense.