Match "DONE ()" as done for "all DONE" drivers

Before this "DONE ()" would incorrectly mark the extension as
done for all drivers instead of the drivers in the"all DONE"
driver list.

Signed-off-by: Tobias Droste <tdroste@gmx.de>
Match "DONE (0 binary formats)" as "DONE" for GL_ARB_get_program_binary

GL_ARB_get_program_binary has a hint in the parenthesis which
is not a list of dirvers that support the extension.
Mark all extensions as done for all drivers, if the hint
is not a list of drivers.

Signed-off-by: Tobias Droste <tdroste@gmx.de>
Merge pull request #4 from dro123/fixes

Fixes