bug#20976: 25.0.50; [PATCH] Fix too high return in some cases of status_notify

[Ian Kelling <ian@iankelling.org>]

* src/process.c (status_notify): Fix too high return in some
cases.
---
This was clearly intended to be part of the patch for debbugs:17647 (git
05d2821). The same pattern used elsewhere and wait_proc is an an unused
parameter added in that patch.

diff --git a/src/process.c b/src/process.c
index 3132f19..5272792 100644
--- a/src/process.c
+++ b/src/process.c
@@ -6714,7 +6714,8 @@ status_notify (struct Lisp_Process *deleting_process,
                 && p != deleting_process)
            {
              int nread = read_process_output (proc, p->infd);
-	      if (got_some_input < nread)
+	      if ((!wait_proc || wait_proc == XPROCESS (proc))
+                  && got_some_input < nread)
                got_some_input = nread;
              if (nread <= 0)
                break;
--
1.9.1