Refresh all docs (#298)

Change the discovery query to fetch all discovery docs, not just the
preferred ones.
diff --git a/docs/dyn/logging_v2beta1.entries.html b/docs/dyn/logging_v2beta1.entries.html
index 76f5428..7edc1f3 100644
--- a/docs/dyn/logging_v2beta1.entries.html
+++ b/docs/dyn/logging_v2beta1.entries.html
@@ -98,7 +98,7 @@
         # `LogEntry.timestamp` (oldest first), and the second option returns entries
         # in order of decreasing timestamps (newest first).  Entries with equal
         # timestamps are returned in order of `LogEntry.insertId`.
-    "resourceNames": [ # Optional. One or more cloud resources from which to retrieve log entries.
+    "resourceNames": [ # Required. One or more cloud resources from which to retrieve log entries.
         # Example: `"projects/my-project-1A"`, `"projects/1234567890"`.  Projects
         # listed in `projectIds` are added to this list.
       "A String",