File null.patch of Package bash-5v2

Index: bash-4.4/subst.c
===================================================================
--- bash-4.4.orig/subst.c
+++ bash-4.4/subst.c
@@ -5965,7 +5965,7 @@ read_comsub (fd, quoted, rflag)
 
       if (c == 0)
 	{
-#if 1
+#if 0
 	  if (nullbyte == 0)
 	    {
 	      internal_warning ("%s", _("command substitution: ignored null byte in input"));