Fix post command of clang_verify.

Bug: 311284462
Test: go test -run TestClangVerify
Change-Id: I116c4a3e1e5734a71e1bfd503ea2268a1a5643dd
diff --git a/cc/builder.go b/cc/builder.go
index d817d82..7a3394a 100644
--- a/cc/builder.go
+++ b/cc/builder.go
@@ -638,7 +638,7 @@
 		ccCmd = "${config.ClangBin}/" + ccCmd
 
 		if flags.clangVerify {
-			postCmd = " && touch $$out"
+			postCmd = " && touch " + objFile.String()
 		}
 
 		var implicitOutputs android.WritablePaths