# HG changeset patch
# User Bram Moolenaar <Bram@vim.org>
# Date 1584620103 -3600
# Node ID 1697a25328fd8e36096457bca2377f25ecf7808a
# Parent  196dcd448100c241fc65e89a6c6547ff4ef80df8
patch 8.2.0404: writefile() error does not give a hint

Commit: https://github.com/vim/vim/commit/18a2b87ca27c378a555b20f14a284d2ce3511427
Author: Bram Moolenaar <Bram@vim.org>
Date:   Thu Mar 19 13:08:45 2020 +0100

    patch 8.2.0404: writefile() error does not give a hint

    Problem:    Writefile() error does not give a hint.
    Solution:   Add remark about first argument.

diff --git a/src/filepath.c b/src/filepath.c
--- a/src/filepath.c
+++ b/src/filepath.c
@@ -1929,7 +1929,8 @@ f_writefile(typval_T *argvars, typval_T 
     }
     else
     {
-	semsg(_(e_invarg2), "writefile()");
+	semsg(_(e_invarg2),
+		_("writefile() first argument must be a List or a Blob"));
 	return;
     }
 
diff --git a/src/testdir/test_writefile.vim b/src/testdir/test_writefile.vim
--- a/src/testdir/test_writefile.vim
+++ b/src/testdir/test_writefile.vim
@@ -16,6 +16,8 @@ func Test_writefile()
   call assert_equal("morning", l[3])
   call assert_equal("vimmers", l[4])
   call delete(f)
+
+  call assert_fails('call writefile("text", "Xfile")', 'E475: Invalid argument: writefile() first argument must be a List or a Blob')
 endfunc
 
 func Test_writefile_ignore_regexp_error()
diff --git a/src/version.c b/src/version.c
--- a/src/version.c
+++ b/src/version.c
@@ -739,6 +739,8 @@ static char *(features[]) =
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    404,
+/**/
     403,
 /**/
     402,