Fixes: Bug 205663 - crashes due to exit() is used in forked process

src/launcher/logger.cpp

@@ -235,7 +235,7 @@ void Logger::logErrorAndDie(int code, const char * format, ...)
     vfprintf(stderr, format, ap);
     va_end(ap);
 
-    exit(code);
+    _exit(code);
 }
 
 void Logger::setEchoMode(bool enable)

src/launcher/mbooster.cpp

@@ -67,7 +67,7 @@ void MBooster::hupSignalHandler(int)
 
 void MBooster::handleSigHup()
 {
-    ::exit(EXIT_SUCCESS);
+    ::_exit(EXIT_SUCCESS);
 }
 
 bool MBooster::setupUnixSignalHandlers()