Free [0] item in Line_History
Free [0] item in Line_History

At one point the zero line was fixed as a C constant at a
literal empty string, but for type correctness was changed to
match the other allocated strings that needed to be freed.
However, the free function didn't free it.

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