[trivial] added test for logger config keys.

test/transform/resource/before/FlagUsages.java

@@ -1,8 +1,8 @@
-//conf: lombok.Getter.flagUsage = WARNING
-//conf: lombok.experimental.flagUsage = ERROR
+//CONF: lombok.Getter.flagUsage = WARNING
+//CONF: lombok.experimental.flagUsage = ERROR
 public class FlagUsages {
 	@lombok.Getter String x;
-	
+
 	@lombok.experimental.Wither String z;
 
 	public FlagUsages(String x, String y) {