Ref: add new static analyser rule: category/java/bestpractices.xml/MissingOverride

src/main/java/com/sheepit/client/os/windows/WinProcess.java

@@ -188,7 +188,7 @@ public class WinProcess {
 		return result;
 	}
 	
-	public String toString() {
+	@Override public String toString() {
 		return "WinProcess(pid: " + this.pid + ", handle " + this.handle + ")";
 	}
 }