user-search: Fix query used in "My > Watched Changes"

The actual query used in the UI is "is:watched is:open" but the
documentation said "status:open is:watched". Both are effectively
the same, but it's better to be consistent.

Bug: Issue 8603
Change-Id: I44c2e95c41add9e98d82d769117ceda961174af3

Documentation/user-search.txt

diff --git a/Documentation/user-search.txt b/Documentation/user-search.txt
index e09b61f..98e03e1 100644
--- a/Documentation/user-search.txt
+++ b/Documentation/user-search.txt
@@ -13,7 +13,7 @@
 |All > Merged         | status:merged
 |All > Abandoned      | status:abandoned
 |My > Drafts          | owner:self is:draft
-|My > Watched Changes | status:open is:watched
+|My > Watched Changes | is:watched is:open
 |My > Starred Changes | is:starred
 |My > Draft Comments  | has:draft
 |Open changes in Foo  | status:open project:Foo