Fix command debug output to join tuples as well.

[pvalena]

No description provided.

[packit-as-a-service]

Congratulations! The build has finished successfully. 🍾

You can install the built RPMs by following these steps:

• sudo yum install -y dnf-plugins-core on RHEL 8
• sudo dnf install -y dnf-plugins-core on Fedora
• dnf copr enable packit/psss-tmt-77
• And now you can install the packages.

Please note that the RPMs should be used only in a testing environment.

[pvalena]

diff --git a/tmt/utils.py b/tmt/utils.py
index 44bf197..4fb8687 100644
--- a/tmt/utils.py
+++ b/tmt/utils.py
@@ -170,7 +170,7 @@ class Common(object):

         # Handle the exit code, return output
         if process.returncode != 0:
-            if isinstance(command, list) or isinstance(command, tuple):
+            if isinstance(command, (list, tuple)):
                 command = ' '.join(command)
             raise subprocess.CalledProcessError(process.returncode, command)
         return stdout, stderr
@@ -185,7 +185,10 @@ class Common(object):
         """
         # Use a generic message if none given, prepare error message
         if not message:
-            line = ' '.join(command) if isinstance(command, list) or isinstance(command, tuple) else command
+            if isinstance(command, (list, tuple)):
+                line = ' '.join(command)
+            else:
+                line = command
             message = f"Run command '{line}'."
         self.debug(message)
         message = "Failed to " + message[0].lower() + message[1:]