Reformat build/soong for go 1.19

Test: none
Change-Id: I132368f0fcbdb5ea088b5b84dbe4ccfdd9e94cad
diff --git a/apex/key.go b/apex/key.go
index 9c5bb05..d449589 100644
--- a/apex/key.go
+++ b/apex/key.go
@@ -105,7 +105,7 @@
 	m.keyName = pubKeyName
 }
 
-////////////////////////////////////////////////////////////////////////
+// //////////////////////////////////////////////////////////////////////
 // apex_keys_text
 type apexKeysText struct {
 	output android.OutputPath