flesh out a traceback

chapter_26_page_pattern.asciidoc

@@ -396,15 +396,25 @@ It's long past time to run the FT and check if all of this works!
 [subs="specialcharacters,macros"]
 ----
 $ pass:quotes[*python src/manage.py test functional_tests.test_sharing*]
-
+[...]
+  File "...goat-book/src/functional_tests/test_sharing.py", line 35, in
+test_can_share_a_list_with_another_user
     share_box = list_page.get_share_box()
     [...]
+    return self.test.browser.find_element(
+           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
+        By.CSS_SELECTOR,
+        ^^^^^^^^^^^^^^^^
+        'input[name="sharee"]',
+        ^^^^^^^^^^^^^^^^^^^^^^^
+    [...]
 selenium.common.exceptions.NoSuchElementException: Message: Unable to locate
 element: input[name="sharee"]; [...]
 ----
 
-That's the expected failure; we don't have an input for email addresses
-of people to share with. Let's do a commit:
+That's the expected failure;
+we don't have an input for email addresses of people to share with.
+Let's do a commit:
 
 
 [subs="specialcharacters,quotes"]