and replace it with one which does not "snoop" history written
by others. (1) it is what bug 185 needs, and (2) it is less bloaty:
function old new delta
load_history - 252 +252
read_line_input 3155 3287 +132
next_token 914 918 +4
qrealloc 36 33 -3
getoptscmd 713 708 -5
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 2/2 up/down: 388/-8) Total: 380 bytes
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