Same result i.e. LC_COLLATE and LC_CTYPE gets set as 'English_United States.1252' Had specified template option this earlier too.
Btw in case the specified collation is incompatible then "createdb" binary complains and instructs to use template0 as template, which isn't the case here.
The codeset parameter is missed here and hence it takes the collation as the default one which is 'English_United States.1252'.