Fix clean template.

templates/common/clean.sh

@@ -4,7 +4,9 @@
 WORKDIR=%HPCROOTDIR%
 STARTDATE=%SDATE%
 MEMBER=%MEMBER%
-FILES_TO_CLEAN="%simulation.FILES_TO_CLEAN%"
+FILES_TO_CLEAN='%simulation.FILES_TO_CLEAN%'
+
+echo "${FILES_TO_CLEAN}"
 
 # Define run directory
 RUNDIR=${WORKDIR}/${STARTDATE}/${MEMBER}