8326112: Javadoc snippet for Linker.Option.captureCallState is wrong

Reviewed-by: jvernee

src/java.base/share/classes/java/lang/foreign/Linker.java

@@ -858,7 +858,7 @@ public sealed interface Linker permits AbstractLinker {
          * try (Arena arena = Arena.ofConfined()) {
          *     MemorySegment capturedState = arena.allocate(capturedStateLayout);
          *     handle.invoke(capturedState);
-         *     int errno = (int) errnoHandle.get(capturedState);
+         *     int errno = (int) errnoHandle.get(capturedState, 0L);
          *     // use errno
          * }
          * }