Touch up tell docs

zoffixznet · zoffixznet · commit 93dcea5a8eff · 2017-05-28T15:53:08.000-04:00
diff --git a/doc/Type/IO/Handle.pod6 b/doc/Type/IO/Handle.pod6
@@ -430,7 +430,7 @@ offset if you want to position before the end of the file.
 
 Defined as:
 
-    method tell(IO::Handle:D: --> Int)
+    method tell(IO::Handle:D: --> Int:D)
 
 Return the current position of the file pointer in bytes.
 
