glx: Use glx:CONTEXT for share_list parameter of CreateNewContext
glx: Use glx:CONTEXT for share_list parameter of CreateNewContext

This matches the share_list parameter of CreateContext.

Signed-off-by: Ian Romanick <2b237cafb16dc45038e85df6c85e74e6d899eba9@intel.com>
Signed-off-by: Peter Harris <859d2524afe9d1b926cf5c02089ad1cbab640cc0@opentext.com>

nbaum/xcb-proto,nbaum/xcb-proto