document HISTSIZE limit
fix link; found by zacts
cease exporting $RANDOM (Debian #760857)
restore C99 compatibility: do not use “restricted” as an identifier
small gem ;)
use symmetric #ifdef checks for same-feature (Debian #763842)
wording
use issetugid(2) as additional aid in determining if we are FPRIVILEGED
SECURITY: do not permit += from environment either
this makes our environment filter/sanitisation complete
overhaul IFS handling, fix bugs reported by Stephane Chazelas and mikeserv

now we’re at: 486 passed testsuite items, 0 failed
ifs.sh still: # tests 6856 passed 6856 failed 0