[UPD] Update purchase_request.pot

Author: oca-ci

purchase_request/i18n/purchase_request.pot

@@ -665,7 +665,7 @@ msgstr ""
 #. module: purchase_request
 #: model:ir.model.fields,help:purchase_request.field_purchase_request__message_needaction_counter
 #: model:ir.model.fields,help:purchase_request.field_purchase_request_line__message_needaction_counter
-msgid "Number of messages which requires an action"
+msgid "Number of messages requiring action"
 msgstr ""
 
 #. module: purchase_request