diff --git a/libisoburn/trunk/releng/inc/releng_getopts.inc b/libisoburn/trunk/releng/inc/releng_getopts.inc
index 3cfa3184..4c165ced 100644
--- a/libisoburn/trunk/releng/inc/releng_getopts.inc
+++ b/libisoburn/trunk/releng/inc/releng_getopts.inc
@@ -122,8 +122,7 @@ next_is=
 for i in "$@"
 do
   if test "$next_is" = "ignore"
-  then
-       dummy=dummy
+  then :
   elif test "$next_is" = "x"
   then
        RELENG_XORRISO="$i"
diff --git a/libisoburn/trunk/releng/manual_devices b/libisoburn/trunk/releng/manual_devices
index bf091567..14cb3418 100755
--- a/libisoburn/trunk/releng/manual_devices
+++ b/libisoburn/trunk/releng/manual_devices
@@ -148,8 +148,7 @@ case ${RET} in
       get_devices "$devices" "$dev"
       RET="$?"
       if test "$RET" = 0
-      then
-           dummy=dummy
+      then :
       else
            echo "FAIL : ${SELF} : Device scan or single drive listing failed"
            exit "$RET"
diff --git a/libisoburn/trunk/releng/run_all_releng b/libisoburn/trunk/releng/run_all_releng
index 0f8a755c..feb242ac 100755
--- a/libisoburn/trunk/releng/run_all_releng
+++ b/libisoburn/trunk/releng/run_all_releng
@@ -29,8 +29,7 @@ next_is=
 for i in "$@"
 do
   if test "$next_is" = "ignore"
-  then
-       dummy=dummy
+  then :
   elif test "$next_is" = "x"
   then
        RELENG_XORRISO="$i"