Try different PS4

Author: j-woz

dev/conda/conda-install.sh

@@ -125,7 +125,7 @@ if (( USE_R )) {
 # Run conda install!
 CONDA_FLAGS=( --yes --quiet $SOLVER )
 # For set -x:
-PS4="%1N: "
+PS4="+ "
 set -x
 if (( INSTALL_DEPS )) {
      () {

dev/jenkins/anaconda.sh

@@ -293,7 +293,7 @@ try-swift-t()
   PATH=$WORKSPACE/sfw/Miniconda-install/bin:$PATH
   () {
     # For set -x:
-    PS4="%1N: "
+    PS4="+ "
     set -x
     which swift-t
     swift-t -v