Fix typo on example (#193)
Remove redundant "be".
diff --git a/cmp/example_test.go b/cmp/example_test.go
index 5954780..2689efb 100644
--- a/cmp/example_test.go
+++ b/cmp/example_test.go
@@ -219,7 +219,7 @@
return strings.ToLower(string(x)) == strings.ToLower(string(y))
}
-// If the Equal method defined on a type is not suitable, the type can be be
+// If the Equal method defined on a type is not suitable, the type can be
// dynamically transformed to be stripped of the Equal method (or any method
// for that matter).
func ExampleOption_avoidEqualMethod() {
