patch 9.1.1318: tests: test_format fails

Problem:  tests: test_format fails (after 9.1.1314).
Solution: Increase the string size.  Add missing test_format.res in
          NEW_TESTS_RES (zeertzjq).

closes: #17144

Signed-off-by: zeertzjq <zeertzjq@outlook.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/runtime/doc/builtin.txt b/runtime/doc/builtin.txt
index 5a72e21..4ad6b3d 100644
--- a/runtime/doc/builtin.txt
+++ b/runtime/doc/builtin.txt
@@ -1,4 +1,4 @@
-*builtin.txt*	For Vim version 9.1.  Last change: 2025 Mar 30
+*builtin.txt*	For Vim version 9.1.  Last change: 2025 Apr 18
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar
@@ -8158,7 +8158,8 @@
 <		      1.41
 
 		You will get an overflow error |E1510|, when the field-width
-		or precision will result in a string longer than 6400 chars.
+		or precision will result in a string longer than 1 MB
+		(1024*1024 = 1048576) chars.
 
 							*E1500*
 		You cannot mix positional and non-positional arguments: >
diff --git a/src/testdir/Make_all.mak b/src/testdir/Make_all.mak
index 55434b0..de4e30f 100644
--- a/src/testdir/Make_all.mak
+++ b/src/testdir/Make_all.mak
@@ -434,6 +434,7 @@
 	test_float_func.res \
 	test_fnameescape.res \
 	test_fold.res \
+	test_format.res \
 	test_functions.res \
 	test_function_lists.res \
 	test_getcwd.res \
diff --git a/src/testdir/test_format.vim b/src/testdir/test_format.vim
index 785348b..c261288 100644
--- a/src/testdir/test_format.vim
+++ b/src/testdir/test_format.vim
@@ -334,13 +334,13 @@
   call v9.CheckLegacyAndVim9Failure(["call printf('%1$*123456789$.*987654321$d', 5)"], "E1510:")
   call v9.CheckLegacyAndVim9Failure(["call printf('%123456789$*1$.*987654321$d', 5)"], "E1510:")
 
-  call v9.CheckLegacyAndVim9Failure(["call printf('%1$*2$.*1$d', 5, 9999)"], "E1510:")
-  call v9.CheckLegacyAndVim9Failure(["call printf('%1$*1$.*2$d', 5, 9999)"], "E1510:")
-  call v9.CheckLegacyAndVim9Failure(["call printf('%2$*3$.*1$d', 5, 9123, 9321)"], "E1510:")
-  call v9.CheckLegacyAndVim9Failure(["call printf('%1$*2$.*3$d', 5, 9123, 9321)"], "E1510:")
-  call v9.CheckLegacyAndVim9Failure(["call printf('%2$*1$.*3$d', 5, 9123, 9312)"], "E1510:")
+  call v9.CheckLegacyAndVim9Failure(["call printf('%1$*2$.*1$d', 5, 9999999)"], "E1510:")
+  call v9.CheckLegacyAndVim9Failure(["call printf('%1$*1$.*2$d', 5, 9999999)"], "E1510:")
+  call v9.CheckLegacyAndVim9Failure(["call printf('%2$*3$.*1$d', 5, 9999123, 9999321)"], "E1510:")
+  call v9.CheckLegacyAndVim9Failure(["call printf('%1$*2$.*3$d', 5, 9999123, 9999321)"], "E1510:")
+  call v9.CheckLegacyAndVim9Failure(["call printf('%2$*1$.*3$d', 5, 9999123, 9999312)"], "E1510:")
 
-  call v9.CheckLegacyAndVim9Failure(["call printf('%1$*2$d', 5, 9999)"], "E1510:")
+  call v9.CheckLegacyAndVim9Failure(["call printf('%1$*2$d', 5, 9999999)"], "E1510:")
 endfunc
 
 func Test_printf_pos_64bit()
diff --git a/src/version.c b/src/version.c
index e6c8690..a095b67 100644
--- a/src/version.c
+++ b/src/version.c
@@ -705,6 +705,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1318,
+/**/
     1317,
 /**/
     1316,