change --dvarg='' from default to NULL argument

require-ess/tools/iocsh_functions.bash

@@ -335,7 +335,7 @@ function loadFiles() {
         else
           shift
           if [[ -z "${1#*=}" ]]; then
-            __LOADER__="gdb --eval-command run --args "
+            __LOADER__="gdb "
           else
             __LOADER__="gdb ${1#*=} "
           fi
@@ -347,7 +347,7 @@ function loadFiles() {
         else
           shift
           if [[ -z "${1#*=}" ]]; then
-            __LOADER__="valgrind --leak-check=full "
+            __LOADER__="valgrind "
           else
             __LOADER__="valgrind ${1#*=} "
           fi