Fix bug #1853: bacula-sd dead but pid file exists.

Fix bug #1853: bacula-sd dead but pid file exists.

We scanned using a %d pattern into a bool value. On some
platforms (SPARC) this gives a severe SIGBUS e.g. bus error
as the sizeof(bool) on 64 bits is 1 byte and the %d uses an
integer value which is 4 bytes. Its obvious now we know this
problem that its an problem on other platforms too but it
seems only on SPARC it triggers a hardware error by the CPU.

The workaround is to use a temporary variable and set the
bool to either true or false based on the integer value.