Correct MEPA code "CRVL" and "ARMZ" withou ","

Signed-off-by: Gustavo Toshi Komura <gtk10@c3sl.ufpr.br>
Correct read with return function

Signed-off-by: Gustavo Toshi Komura <gtk10@c3sl.ufpr.br>
Update test to check read with return function

Signed-off-by: Gustavo Toshi Komura <gtk10@c3sl.ufpr.br>
Execute make

Signed-off-by: Gustavo Toshi Komura <gtk10@c3sl.ufpr.br>