Daemonize follow-up fixes (#81584) (#81766)

* Ensure binary data transmission in daemonize

* Add changelog fragment

(cherry picked from commit 91f94fb59d)

changelogs/fragments/81584-daemonize-follow-up-fixes.yml

@@ -0,0 +1,2 @@
+bugfixes:
+  - "``ansible.module_utils.service`` - ensure binary data transmission in ``daemonize()``"

lib/ansible/module_utils/service.py

@@ -215,9 +215,10 @@ def daemonize(module, cmd):
                 for out in list(fds):
                     if out in rfd:
                         data = os.read(out.fileno(), chunk)
-                        if not data:
+                        if data:
+                            output[out] += to_bytes(data, errors=errors)
+                        else:
                             fds.remove(out)
-                        output[out] += data
             else:
                 break
 
@@ -248,7 +249,7 @@ def daemonize(module, cmd):
                 data = os.read(pipe[0], chunk)
                 if not data:
                     break
-                return_data += data
+                return_data += to_bytes(data, errors=errors)
 
         # Note: no need to specify encoding on py3 as this module sends the
         # pickle to itself (thus same python interpreter so we aren't mixing