bash: update to 4.4.23

bash/src/bash44-013

@@ -0,0 +1,43 @@
+			     BASH PATCH REPORT
+			     =================
+
+Bash-Release:	4.4
+Patch-ID:	bash44-013
+
+Bug-Reported-by:	Siteshwar Vashisht <svashisht@redhat.com>
+Bug-Reference-ID:	<1508861265.9523642.1484659442561.JavaMail.zimbra@redhat.com>
+Bug-Reference-URL:	http://lists.gnu.org/archive/html/bug-bash/2017-01/msg00026.html
+
+Bug-Description:
+
+If a here-document contains a command substitution, the command substitution
+can get access to the file descriptor used to write the here-document.
+
+Patch (apply with `patch -p0'):
+
+*** ../bash-4.4-patched/redir.c	2016-06-02 20:22:24.000000000 -0400
+--- redir.c	2017-01-17 13:23:40.000000000 -0500
+***************
+*** 470,473 ****
+--- 467,472 ----
+      }
+  
++   SET_CLOSE_ON_EXEC (fd);
++ 
+    errno = r = 0;		/* XXX */
+    /* write_here_document returns 0 on success, errno on failure. */
+*** ../bash-4.4/patchlevel.h	2016-06-22 14:51:03.000000000 -0400
+--- patchlevel.h	2016-10-01 11:01:28.000000000 -0400
+***************
+*** 26,30 ****
+     looks for to find the patch level (for the sccs version string). */
+  
+! #define PATCHLEVEL 12
+  
+  #endif /* _PATCHLEVEL_H_ */
+--- 26,30 ----
+     looks for to find the patch level (for the sccs version string). */
+  
+! #define PATCHLEVEL 13
+  
+  #endif /* _PATCHLEVEL_H_ */