#### Shortcut to enable use of valgrind: set NMH_VALGRIND environment
#### variable (to anything) so run_* will use valgrind.
if [ "${NMH_VALGRIND}" -a -z "${NMH_TEST_PREFIX}" ]; then
#### Shortcut to enable use of valgrind: set NMH_VALGRIND environment
#### variable (to anything) so run_* will use valgrind.
if [ "${NMH_VALGRIND}" -a -z "${NMH_TEST_PREFIX}" ]; then