Fixed incorrect errno reporting for completely unrestricted system calls.
Fixed incorrect errno reporting for completely unrestricted system calls.

marylinh/seccompsandbox,aman-iitj/seccompsandbox,dj091111/seccompsandbox,marylinh/seccompsandbox,aman-iitj/seccompsandbox,marylinh/seccompsandbox,dj091111/seccompsandbox,dj091111/seccompsandbox,aman-iitj/seccompsandbox