patch 9.1.1260: Hang when filtering buffer with NUL bytes

Problem:  Hang when filtering buffer with NUL bytes (after 9.1.1050).
Solution: Don't subtract "written" from "lplen" repeatedly (zeertzjq).

related: neovim/neovim#33173
closes: #17011

Signed-off-by: zeertzjq <zeertzjq@outlook.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/version.c b/src/version.c
index e28782b..d0fdb65 100644
--- a/src/version.c
+++ b/src/version.c
@@ -705,6 +705,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1260,
+/**/
     1259,
 /**/
     1258,