Currently there is no indication of the maximum length of keysym names.
This is statically known, so add the new *internal* following API:
`XKB_KEYSYM_NAME_MAX_SIZE`.
Previously, could only check how to type a Unicode codepoint, but
searching for a keysym directly is also occasionally useful.
Signed-off-by: Ran Benita <ran@unusedvar.com>
This provides consistency with the other tools that now all take long options.
Plus, it's more obvious to have the arguments spelled out.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>