[PR #6269/a64e3682 backport][stable-6] mksysb: improve visibility on the output (#6291)

mksysb: improve visibility on the output (#6269)

* mksysb: improve visibility on the output

* add changelog frag

(cherry picked from commit a64e36820f)

Co-authored-by: Alexei Znamensky <103110+russoz@users.noreply.github.com>

changelogs/fragments/6269-mksysb-output.yml

@@ -0,0 +1,2 @@
+minor_changes:
+  - mksysb - improved the output of the module in case of errors (https://github.com/ansible-collections/community.general/issues/6263).

plugins/modules/mksysb.py

@@ -146,8 +146,7 @@ class MkSysB(ModuleHelper):
     def __run__(self):
         def process(rc, out, err):
             if rc != 0:
-                self.do_raise("mksysb failed.")
-            self.vars.msg = out
+                self.do_raise("mksysb failed: {0}".format(out))
 
         runner = CmdRunner(
             self.module,
@@ -158,6 +157,8 @@ class MkSysB(ModuleHelper):
                      'extended_attrs', 'backup_crypt_files', 'backup_dmapi_fs', 'new_image_data', 'combined_path'],
                     output_process=process, check_mode_skip=True) as ctx:
             ctx.run(combined_path=[self.vars.storage_path, self.vars.name])
+            if self.verbosity >= 4:
+                self.vars.run_info = ctx.run_info
 
         self.changed = True