Remove special characters in host_add random OTP generation

Fixes a regression in 4.5.0 where special character set was limited.

Special characters in the OTP has caused issues in unattended
installations where the OTP is not properly quoted or escaped.

Expansion of the special character set in 4.5.0 release may cause
existing user installation scripts to fail where they wouldn't
otherwise.

https://pagure.io/freeipa/issue/7380

Reviewed-By: Rob Crittenden <rcritten@redhat.com>

ipaserver/plugins/host.py

@@ -686,7 +686,7 @@ class host_add(LDAPCreate):
                 entry_attrs['objectclass'].remove('krbprincipal')
         if options.get('random'):
             entry_attrs['userpassword'] = ipa_generate_password(
-                entropy_bits=TMP_PWD_ENTROPY_BITS)
+                entropy_bits=TMP_PWD_ENTROPY_BITS, special=None)
             # save the password so it can be displayed in post_callback
             setattr(context, 'randompassword', entry_attrs['userpassword'])