[O] org-babel-C-ensure-main-wrap fails unless I add exit(0)

[Dov Grobgeld]

When running a babel C session under Linux/gcc I do not get any error unless I add exit(0) as part of the C-code snippet. For some to me not understood reason my program exits with error code=4, which is caught by org-babel-eval and the printed output is not inserted into my buffer . I solved this by adding `#include <stdlib.h>` and `exit(0);` as part of org-babel-C-ensure-main-wrap .

Should I prepare this as patch?

Regards,
Dov