avoid false positives with multi-line variable definitions that can be
produced by the 'export' builtin.
svn path=/main/trunk/; revision=9432
filtered_vars="${readonly_bash_vars} ${READONLY_PORTAGE_VARS}
BASH_[_[:alnum:]]* PATH
[[:digit:]][_[:alnum:]]*
- [^=[:space:]]*[^_[:alnum:]=[:space:]][^=[:space:]]*"
+ [-_[:alnum:]]*-[-_[:alnum:]]*"
if hasq --filter-sandbox $* ; then
filtered_vars="${filtered_vars} SANDBOX_[_[:alnum:]]*"
else