--transfer smpte-st-2084 produces error

[Former user]

there seem to be a issue with --transfer smpte-st-2084

x265 [error]: invalid argument: transfer = smpte-st-2084

v2.5+14

[Ma0]

Now it is smpte2084, but documentation and help message should be updated.

[Pradeep Ramachandran]

Resolved with changeset 0e168bdeb48b