Clarify examining for vs collecting annotations

You have to look at all subschemas in the cases in question,
which may or may not result in actual collection of annotations,
depending on the assertion outcomes of the individual subschemas.

Author: handrews

jsonschema-core.xml

@@ -656,7 +656,7 @@
                 subschemas have been evaluated, although in some circumstances evaluation
                 may be short-circuited due to assertion results.  When annotations are
                 being collected, some assertion result short-circuiting is not possible
-                due to the need to collect annotations from all subschemas, including
+                due to the need to examine all subschemas for annotation collection, including
                 those that cannot further change the assertion result.
             </t>
             <section title="Keyword Interactions">
@@ -1984,8 +1984,9 @@
                         <t>
                             An instance validates successfully against this keyword if it validates
                             successfully against at least one schema defined by this keyword's value.
-                            Note that when annotations are being collected, they MUST be collected
-                            from all subschemas if any subschema validates successfully.
+                            Note that when annotations are being collected, all subschemas MUST
+                            be examined so that annotations are collected from each subschema
+                            that validates successfully.
                         </t>
                     </section>