[FIX] purchase(_requisition): typo negociation -> negotiation

addons/purchase/purchase_view.xml

@@ -377,7 +377,7 @@
               <p class="oe_view_nocontent_create">
                 Click to create a request for quotation.
               </p><p>
-                The quotation contains the history of the discussion/negociation
+                The quotation contains the history of the discussion/negotiation
                 you had with your supplier. Once confirmed, a request for
                 quotation is converted into a purchase order.
               </p><p>

addons/purchase_requisition/purchase_requisition_view.xml

@@ -155,7 +155,7 @@
                     <field name="name" string="Call for Bids"/>
                     <field name="exclusive" />
                     <filter icon="terp-document-new" name="draft" string="New" domain="[('state','=','draft')]" help="New Call for Bids"/>
-                    <filter icon="terp-camera_test" string="Confirmed" domain="[('state','=','in_progress')]" help="Call for Bids in negociation"/>
+                    <filter icon="terp-camera_test" string="Confirmed" domain="[('state','=','in_progress')]" help="Call for Bids in negotiation"/>
                     <filter icon="terp-dialog-close" string="Closed Bids" domain="[('state','=','open')]" help="Call for Bids where bids are closed"/>
                     <separator/>
                     <filter icon="terp-personal-" string="Unassigned"  domain="[('user_id','=', False)]" help="Unassigned  Requisition"/>