Fix: Typo

lib/hawat/blueprints/design_bs3/templates/_macros_chart.html

@@ -1028,7 +1028,7 @@
                     {%- set _stats_var_name = statistics_var_name %}
                 {%- else %}
                     {%- set _stats = None %}
-                    {%- set _stats_var_name = Nhone %}
+                    {%- set _stats_var_name = None %}
                 {%- endif %}
 
                 <!-- Tab panel - BEGIN ---------------------------------------->