fix test driver leaks: exclude, malloc, realloc * tests/test-exclude.c (main): Fix trivial leak. * tests/test-malloc-gnu.c (main): Likewise. * tests/test-realloc-gnu.c (main): Likewise. With these changes, grep's tests are now leak free. I.e., running them with ASAN elicits no failure: make CFLAGS='-O0 -ggdb3' AM_CFLAGS=-fsanitize=address \ AM_LDFLAGS='-fsanitize=address -static-libasan' check