cmocka: Add new message printing formatter for testcases
cmocka: Add new message printing formatter for testcases

Signed-off-by: Jakub Hrozek <17cd138b925932d6ed84ede56550124a0b538ee0@posteo.se>

VladimirTyrin/cmocka,clibs/cmocka,VladimirTyrin/cmocka,jhrozek/cmocka,dsch/cmocka,tyc/cmocka,tyc/cmocka,wingyplus/cmocka,wingyplus/cmocka,jamesmunns/CMocka,jhrozek/cmocka,jhrozek/cmocka,jamesmunns/CMocka,JonathonReinhart/cmocka,tyc/cmocka,clibs/cmocka,dsch/cmocka,JonathonReinhart/cmocka