Fix install scripts debugging

- Make sure to pass down the debug flag to ipa-client-install when
the server install is run in debug mode

Signed-off-by: Simo Sorce <simo@redhat.com>
Reviewed-By: Alexander Bokovoy <abokovoy@redhat.com>

ipaserver/install/server/install.py

@@ -896,6 +896,8 @@ def install(installer):
             args.append("--no-sshd")
         if options.mkhomedir:
             args.append("--mkhomedir")
+        if options.debug:
+            args.append("--debug")
         run(args, redirect_output=True)
         print()
     except Exception: