Strongly discourage --update-head-ok in fetch-options documentation.
Strongly discourage --update-head-ok in fetch-options documentation.

"Use it with care" is a wrong wording to say "this is purely internal
and you are supposed to know what you are doing if you use this".

Signed-off-by: Junio C Hamano <dc50d1021234060e53ec42a77d526afa2fe07479@cox.net>

destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git