Fix several spelling erroes

[github at samba.org]

New comment by sathieu on Samba Github repository

https://github.com/samba-team/samba/pull/175#issuecomment-386733258
Comment:
Remaining spelling errors:
- dont don't (hard to match only strings and not code)
- ot to (ditto)
- prefered preferred (wanted synonym of `preferred master`)
- reponse response (`lm_reponse`, `nt_reponse`, is this intented?)
- ressource resource (touches code, and vfs_fruit param)
- upto up to (hard to match only strings and not code)
- wont won't (hard to match only strings and not code)