commit c4b93eb7944dd5e97a716c557c9d18c587b8f743
Author:     Fabian Greffrath <fabian@greffrath.com>
AuthorDate: Sat Jan 12 17:58:57 2019 +0100
Commit:     Fabian Greffrath <fabian@greffrath.com>
CommitDate: Sat Jan 12 17:58:57 2019 +0100

    add terminating NULL to M_StringJoin() call

    Thanks SiFi270 for reporting this in the Crispy forums.
---
 src/doom/d_main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/doom/d_main.c b/src/doom/d_main.c
index f790d019..49a2c7f5 100644
--- a/src/doom/d_main.c
+++ b/src/doom/d_main.c
@@ -1173,7 +1173,7 @@ static void LoadIwadDeh(void)

         // Look for chex.deh in the same directory as the IWAD file.
         dirname = M_DirName(iwadfile);
-        chex_deh = M_StringJoin(dirname, DIR_SEPARATOR_S, "chex.deh");
+        chex_deh = M_StringJoin(dirname, DIR_SEPARATOR_S, "chex.deh", NULL);
         free(dirname);

         // If the dehacked patch isn't found, try searching the WAD