Fixed #22453 -- Corrected DoesNotExist message in docs.

Thanks Eugenio Cano-Manuel.

docs/intro/overview.txt

@@ -101,7 +101,7 @@ necessary:
     >>> Reporter.objects.get(id=2)
     Traceback (most recent call last):
         ...
-    DoesNotExist: Reporter matching query does not exist. Lookup parameters were {'id': 2}
+    DoesNotExist: Reporter matching query does not exist.
 
     # Create an article.
     >>> from datetime import date

docs/intro/tutorial01.txt

@@ -777,7 +777,7 @@ Save these changes and start a new Python interactive shell by running
     >>> Question.objects.get(id=2)
     Traceback (most recent call last):
         ...
-    DoesNotExist: Question matching query does not exist. Lookup parameters were {'id': 2}
+    DoesNotExist: Question matching query does not exist.
 
     # Lookup by a primary key is the most common case, so Django provides a
     # shortcut for primary-key exact lookups.