fixed issue of stock_uom translator
diff --git a/erpnext/templates/print_formats/includes/item_table_qty.html b/erpnext/templates/print_formats/includes/item_table_qty.html
index 812da43..0c80069 100644
--- a/erpnext/templates/print_formats/includes/item_table_qty.html
+++ b/erpnext/templates/print_formats/includes/item_table_qty.html
@@ -1,4 +1,4 @@
{% if (doc.stock_uom and not doc.is_print_hide("stock_uom")) or (doc.uom and not doc.is_print_hide("uom")) -%}
-<small class="pull-left">{{ _(doc.uom) or _(doc.stock_uom) }}</small>
+<small class="pull-left">{{ _(doc.uom or doc.stock_uom) }}</small>
{%- endif %}
{{ doc.get_formatted("qty", doc) }}