Added Diff language string

Author: snipe

app/lang/en/admin/hardware/table.php

@@ -14,5 +14,6 @@
 	'change' => 'In/Out',
 	'location' => 'Location',
 	'eol' => 'EOL',
+	'diff' => 'Diff',
 
 );

app/views/backend/reports/index.blade.php

@@ -42,7 +42,7 @@
 			<th class="col-sm-1">@lang('admin/hardware/table.eol')</th>
 			<th class="col-sm-1">@lang('admin/hardware/table.purchase_cost')</th>
 			<th class="col-sm-1">@lang('admin/hardware/table.book_value')</th>
-			<th class="col-sm-1">Diff</th>
+			<th class="col-sm-1">@lang('admin/hardware/table.diff')</th>
 		</tr>
 	</thead>
 	<tbody>