#9 p;ossible recursive variable substitution problem

[Jim Hart]

May apply to all versions up to current.

# If a variable contains the name of another variable,
that value will
# be treated as a string. Then, when the next
level of substitution is
# done, one of 2 things will happen. If the second
level variable contains
# a number, it will end up being treated as a
string, i.e.
# '99999'
# If the second level variable contains a string,
it will create an error
# due to too many quotes, i.e.
# ''some value''