user-search: Fix incorrect label: search example

Bug: Issue 8599
Change-Id: Iadff4b82d7fbe642b401fa47a1987f469c3dc5ca
diff --git a/Documentation/user-search.txt b/Documentation/user-search.txt
index 392d5cf..946d457 100644
--- a/Documentation/user-search.txt
+++ b/Documentation/user-search.txt
@@ -580,7 +580,7 @@
 link:#submittable[submittable:ok].)
 
 `is:open (label:Verified-1 OR label:Code-Review-2)`::
-`is:open (label:Verified=reject OR label:Code-Review:reject)`::
+`is:open (label:Verified=reject OR label:Code-Review=reject)`::
 +
 Changes that are blocked from submission due to a blocking score.