patch 7.4.1822

Problem:    Redirecting stdout of a channel to "null" doesn't work. (Nicola)
Solution:   Correct the file descriptor number.

src/os_unix.c

@@ -5195,7 +5195,7 @@ mch_start_job(char **argv, job_T *job, jobopt_T *options UNUSED)
 	/* set up stdout for the child */
 	if (use_null_for_out && null_fd >= 0)
 	{
-	    close(0);
+	    close(1);
 	    ignored = dup(null_fd);
 	}
 	else
@@ -5206,6 +5206,7 @@ mch_start_job(char **argv, job_T *job, jobopt_T *options UNUSED)
 	    ignored = dup(fd_out[1]);
 	    close(fd_out[1]);
 	}
+
 	if (null_fd >= 0)
 	    close(null_fd);
 

src/version.c

@@ -753,6 +753,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1822,
 /**/
     1821,
 /**/