Improve :click-element error message

qutebrowser/browser/commands.py

@@ -1572,7 +1572,7 @@ class CommandDispatcher:
         def single_cb(elem):
             """Click a single element."""
             if elem is None:
-                message.error("No element found!")
+                message.error("No element found with id {}!".format(value))
                 return
             try:
                 elem.click(target)

tests/end2end/features/misc.feature

@@ -566,7 +566,7 @@ Feature: Various utility commands.
     Scenario: Clicking an element with unknown ID
         When I open data/click_element.html
         And I run :click-element id blah
-        Then the error "No element found!" should be shown
+        Then the error "No element found with id blah!" should be shown
 
     Scenario: Clicking an element by ID
         When I open data/click_element.html