Fix copy-paste error

wpiutil/src/main/java/edu/wpi/first/util/struct/StructSerializable.java

@@ -10,7 +10,7 @@
  * Marker interface to indicate a class is serializable using Struct serialization.
  *
  * <p>While this cannot be enforced by the interface, any class implementing this interface should
- * provide a public final static `struct` member variable, or a static final `getProto()` method if
+ * provide a public final static `struct` member variable, or a static final `getStruct()` method if
  * the class is generic.
  */
 public interface StructSerializable extends WPISerializable {}