message: fix line ending
diff: @@ -93,6 +93,7 @@ pipeline {
  agent any
  steps {
  setupCC()
  + sh "echo >> make/local"
  sh "echo CC=${env.MPICXX} -cxx=${env.CXX} >> make/local"
  sh "echo STAN_MPI=true >> make/local"
  sh runTests("./")
  