Fix typo in variable name

packaging/rhn_register

@@ -269,7 +269,7 @@ class Rhn(RegistrationBase):
         # Enable requested repoid's
         for wanted_channel in channels:
             # Each inserted repo regexp will be matched. If no match, no success.
-            for availaible_channel in stdout.rstrip().split('\n'): # .rstrip() because of \n at the end -> empty string at the end
+            for available_channel in stdout.rstrip().split('\n'): # .rstrip() because of \n at the end -> empty string at the end
                 if re.search(wanted_repo, available_channel):
                     rc, stdout, stderr = self.module.run_command(rhn_channel_cmd + " --add --channel=%s" % available_channel, check_rc=True)