Fix strict aliasing warning in crc_test

Signed-off-by: Casey Dahlin <casey.dahlin@gmail.com>
Make ason_destroy ignore NULL argument

Signed-off-by: Casey Dahlin <casey.dahlin@gmail.com>
Fix potential uninitialized use

Signed-off-by: Casey Dahlin <casey.dahlin@gmail.com>
Fix potential uninitialized use

Signed-off-by: Casey Dahlin <casey.dahlin@gmail.com>
Fix potential uninitialized uses in parser_test

Signed-off-by: Casey Dahlin <casey.dahlin@gmail.com>
Fix potential uninitialized use in complement_test

Signed-off-by: Casey Dahlin <casey.dahlin@gmail.com>
Fix potential uninitialized use in blockfile_test

Signed-off-by: Casey Dahlin <casey.dahlin@gmail.com>