glibc: Mirror extra_config flags from do_libc_backend_once

In do_libc_backend_once:
```
              # Also, if those two are missing, iconv build breaks
              extra_config+=( --disable-debug --disable-sanity-checks )
```

But in do_libc_locales we only add ```--disable-debug```.
This change adds ```--disable-sanity-checks``` to do_libc_locales to
mirror this, as I've seen iconv break this way.

Signed-off-by: Bryan Hundven <bryanhundven@gmail.com>

0 files changed, 0 insertions, 0 deletions