(Fsubstitute_command_keys): Cast arg of describe_map_tree.

diff --git a/src/doc.c b/src/doc.c
index 07dd80aaee2146ae1aae38e999133ed6c693c490..f022396eff3df7d88777b80cf22ea583cabe4c2f 100644 (file)
--- a/src/doc.c
+++ b/src/doc.c
@@ -661,7 +661,7 @@ thus, \\=\\=\\=\\= puts \\=\\= into the output, and \\=\\=\\=\\[ puts \\=\\[ int
          else if (start[-1] == '<')
            keymap = tem;
          else
-           describe_map_tree (tem, 1, Qnil, Qnil, 0, 1);
+           describe_map_tree (tem, 1, Qnil, Qnil, (char *)0, 1);
          tem = Fbuffer_string ();
          Ferase_buffer ();
          set_buffer_internal (oldbuf);