after r417886 checking on vg_main.c my valgrind stopped working with
errors like these :
plasmahh@speedy:~> valgrind ls
valgrind: Bad option `/usr/lib/valgrind'; aborting.
valgrind: Use --help for more information.
further investigation revealed that the recently added free() calls in
line 580ff were the cause, and disabling them fixes valgrind for me
again. I dont understand exactly why this is the cause, but at least it