[sssd PR#5213][comment] config: [RFE] Add "enabled" option to domain section

[alexey-tikhonov]

URL: https://github.com/SSSD/sssd/pull/5213
Title: #5213: config: [RFE] Add "enabled" option to domain section

alexey-tikhonov commented:
"""
> Pushed PR: #5213
> * `master`
>
>   * [ff8d7b8](https://github.com/SSSD/sssd/commit/ff8d7b8f0dca57d04ed4157bc60ad3dd3a0eda4f) - config: [RFE] Add "enabled" option to domain section

This patch introduced following compilation warning:
```
../src/confdb/confdb.c: In function ‘confdb_get_domains’:
../src/confdb/confdb.c:2499:12: warning: ‘enabled’ may be used uninitialized in this function [-Wmaybe-uninitialized]
 2499 |         if (enabled && !string_in_list(all_domains[idx], domlist, false)) {
      |            ^
../src/confdb/confdb.c:2460:10: note: ‘enabled’ was declared here
 2460 |     bool enabled;
      |          ^~~~~~~
```

This is clearly false positive, but still would be good to fix.
"""

See the full comment at https://github.com/SSSD/sssd/pull/5213#issuecomment-658725445