K 10
svn:author
V 6
jilles
K 8
svn:date
V 27
2011-05-04T22:12:22.455905Z
K 7
svn:log
V 216
sh: Apply set -u to variables in arithmetic.

Note that this only applies to variables that are actually used.
Things like (0 && unsetvar) do not cause an error.

Exp-run done by: pav (with some other sh(1) changes)

END