patch 8.2.2919: using ":!command" does not work if it uses posix_spawn()

Problem:    Using ":!command" does not work if the command uses posix_spawn().
Solution:   Do not call ioctl() with TIOCSCTTY. (Felipe Contreras)
diff --git a/src/version.c b/src/version.c
index c1fdb64..a9a7b29 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2919,
+/**/
     2918,
 /**/
     2917,