21356776 evs-neutron migration script should exit gracefully if there is nothing to do
--- a/src/cmd/ksh93/bltins/typeset.c Fri Dec 31 00:15:57 2010
+++ b/src/cmd/ksh93/bltins/typeset.c Tue Jun 28 13:59:53 2011
@@ -608,7 +608,7 @@
}
if(!nv_isarray(np) && !strchr(name,'=') && !(shp->envlist && nv_onlist(shp->envlist,name)))
{
- if(comvar || (shp->last_root==shp->var_tree && (tp->tp || (!shp->st.real_fun && (nvflags&NV_STATIC)) || (!(flag&NV_EXPORT) && nv_isattr(np,(NV_EXPORT|NV_IMPORT))==(NV_EXPORT|NV_IMPORT)))))
+ if(comvar || (shp->last_root==shp->var_tree && (tp->tp || (!shp->st.real_fun && (nvflags&NV_STATIC)) || (!(flag&(NV_EXPORT|NV_RDONLY)) && nv_isattr(np,(NV_EXPORT|NV_IMPORT))==(NV_EXPORT|NV_IMPORT)))))
{
_nv_unset(np,0);
}