configure: set valgrind --num-callers to 50 (max)
configure: set valgrind --num-callers to 50 (max)

git-svn-id: 08e2133732f802fc492de198f9f466bc00321731@707 e2d53364-18fc-0310-981e-b60a84739af0

kfish/remix,kfish/remix