as some people have noticed, the script has a misplaced backslash, heres
the correct (cut&paste) script:
cat /proc/memleak | cut -c12- | sort | gawk -- 'BEGIN{Y=0;}//\
{if ($0 == X) {Y=Y+1;} else {if (Y) printf ("%d\t %s\n", Y, X); \
Y=1;} X=$0}END{ printf ("%d\t %s\n", Y, $0);}'
-- mingo