revert strtol back to atoi
revert strtol back to atoi

and avoid:
test-cmd.c:418: undefined reference to
`strtoul_is_not_a_portable_function_use_strtol_instea
on CentOS

Signed-off-by: Hans Zandbelt <ed0aee6a22215d4e183b63ab4a45da7fb897917a@zmartzone.eu>
pingidentity/mod_auth_openidc,pingidentity/mod_auth_openidc