fix action usage variable expansion

tests-ng/actions-args-template.sh

@@ -85,10 +85,10 @@ profiles:
     - profileaction '{{@@ var_profile @@}}'
     - dynaction '{{@@ user_name @@}}'
 variables:
-  var_pre: var_pre
-  var_post: var_post
-  var_naked: var_naked
-  var_profile: var_profile
+  var_pre: abc
+  var_post: def
+  var_naked: ghi
+  var_profile: jkl
 dynvariables:
   user_name: 'echo $USER'
 _EOF
@@ -106,10 +106,15 @@ cd ${ddpath} | ${bin} install -f -c ${cfg} -p p1 -V
 [ ! -e ${tmpa}/naked ] && echo 'naked action not executed'  && exit 1
 [ ! -e ${tmpa}/profile ] && echo 'profile action not executed'  && exit 1
 [ ! -e ${tmpa}/dyn ] && echo 'dynamic acton action not executed'  && exit 1
-grep var_pre ${tmpa}/pre >/dev/null
-grep var_post ${tmpa}/post >/dev/null
-grep var_naked ${tmpa}/naked >/dev/null
-grep var_profile ${tmpa}/profile >/dev/null
+cat ${tmpa}/pre
+grep abc ${tmpa}/pre >/dev/null
+cat ${tmpa}/post
+grep def ${tmpa}/post >/dev/null
+cat ${tmpa}/naked
+grep ghi ${tmpa}/naked >/dev/null
+cat ${tmpa}/profile
+grep jkl ${tmpa}/profile >/dev/null
+cat ${tmpa}/dyn
 grep "$USER" ${tmpa}/dyn >/dev/null
 
 ## CLEANING