K 10
svn:author
V 2
cy
K 8
svn:date
V 27
2018-12-23T05:45:01.128336Z
K 7
svn:log
V 383
Update to the latest ast/ksh93 github commit.

Notable fixes:

    Fix `${+}` parameter expansion inside loops

    `nv_getval()` function internally calls `nv_optimize()` and
    optimizations outside `varsub()` function depend on it. Using
    `nv_isnull()` instead of `nv_getval()` was causing broken behavior
    with `${+}` parameter expansions inside loops.

    Resolves: #70

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