Fix nc_copy_vars from CRIS_L1B_HOME

pca/l1b-pcs/convert-CRISPCAv0-L1B_PCS.sh

@@ -3,7 +3,7 @@ BASE="$( cd -P "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
 
 l1a_nc_copy_vars() {
   if [[ -d "$CRIS_L1B_HOME" ]]; then
-    "$CRIS_L1B_HOME/lib/ShellB3/bin/nc_copy_vars" "$@"
+    "$CRIS_L1B_HOME/lib/ShellB3/bin/python3" -m sips_cris_l0l1a.netcdf "$@"
   elif [[ -x "$(which nc_copy_vars 2>/dev/null)" ]]; then
     nc_copy_vars "$@"
   else