Giving empty string as value for integer variable exists the CLI shell

[DeekshaBhandary]

Ex: consider a command that takes integer as keyword value
cli> set value

cli>set value ""              <------------Exists CLI shell

Below diff solves the problem

supervisor@deeksha_march9_spine>srv2:~/development/cligen $ git diff
diff --git a/cligen_match.c b/cligen_match.c
index 2318610..6cc4af7 100644
--- a/cligen_match.c
+++ b/cligen_match.c
@@ -155,6 +155,9 @@ match_object(cligen_handle h,
 {
   int    match = 0;
   size_t len = 0;
+  enum cv_type t;
+
+  t = co->co_vtype;
 
   if (str)
       len = strlen(str);
@@ -190,8 +193,13 @@ match_object(cligen_handle h,
       }
     break;
   case CO_VARIABLE:
-      if (str == NULL || len==0)
-          match++;
+      if (str == NULL || len==0) {
+           if ((t>= CGV_INT8) && (t<=CGV_DEC64)) {
+               *reason = cligen_reason("'%s' is not a number", str);
+           } else {
+               match++;
+           }
+      }
       else
           if ((match = match_variable(h, co, str, reason)) < 0)
               return -1;
supervisor@deeksha_march9_spine>srv2:~/development/cligen $