[Linux] Fix a crash
[Linux] Fix a crash

The RDC_QUERY function should never return a value other than DR_DONE,
or OS_Do_Device will add a stack allocated event to the pending list of
RDI_EVENT, which will result in a crash.

kealist/ren-c,draegtun/ren-c,hostilefork/rebol,hostilefork/rebol,giuliolunati/ren-c,mbk/ren-c,codebybrett/ren-c,giuliolunati/ren-c,kealist/ren-c,rgchris/ren-c,kealist/ren-c,mbk/ren-c,draegtun/ren-c,codebybrett/ren-c,codebybrett/ren-c,rgchris/ren-c,draegtun/ren-c,giuliolunati/ren-c,draegtun/ren-c,kealist/ren-c,hostilefork/rebol,codebybrett/ren-c,giuliolunati/ren-c,rgchris/ren-c,kealist/ren-c,hostilefork/rebol,kealist/ren-c,giuliolunati/ren-c,rgchris/ren-c,codebybrett/ren-c,mbk/ren-c,rgchris/ren-c,codebybrett/ren-c,hostilefork/rebol,mbk/ren-c,draegtun/ren-c,hostilefork/rebol,draegtun/ren-c