patch 9.1.1235: cproto files are outdated

Problem:  cproto files are outdated
Solution: regenerate proto files by running make proto
          (Yegappan Lakshmanan)

closes: #16956

Signed-off-by: Yegappan Lakshmanan <yegappan@yahoo.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/proto/undo.pro b/src/proto/undo.pro
index 619ad70..14c233c 100644
--- a/src/proto/undo.pro
+++ b/src/proto/undo.pro
@@ -18,9 +18,9 @@
 void u_unchanged(buf_T *buf);
 void u_find_first_changed(void);
 void u_update_save_nr(buf_T *buf);
+void u_clearallandblockfree(buf_T *buf);
 void u_clearline(void);
 void u_undoline(void);
-void u_clearallandblockfree(buf_T *buf);
 int bufIsChanged(buf_T *buf);
 int anyBufIsChanged(void);
 int bufIsChangedNotTerm(buf_T *buf);