util-debug: fix unchecked ConfGetBool call

src/util-debug.h

@@ -1,4 +1,4 @@
-/* Copyright (C) 2007-2010 Open Information Security Foundation
+/* Copyright (C) 2007-2021 Open Information Security Foundation
  *
  * You can copy, redistribute or modify this Program under the terms of
  * the GNU General Public License version 2 as published by the Free
@@ -537,12 +537,12 @@ void SCLogErr(int x, const char *file, const char *func, const int line,
 /** \brief Fatal error IF we're starting up, and configured to consider
  *         errors to be fatal errors */
 #if !defined(__clang_analyzer__)
-#define FatalErrorOnInit(x, ...) do {                                       \
+#define FatalErrorOnInit(x, ...)                                                                   \
+    do {                                                                                           \
         SC_ATOMIC_EXTERN(unsigned int, engine_stage);                                              \
         int init_errors_fatal = 0;                                                                 \
-    ConfGetBool("engine.init-failure-fatal", &init_errors_fatal);           \
+        (void)ConfGetBool("engine.init-failure-fatal", &init_errors_fatal);                        \
-    if (init_errors_fatal && (SC_ATOMIC_GET(engine_stage) == SURICATA_INIT))\
+        if (init_errors_fatal && (SC_ATOMIC_GET(engine_stage) == SURICATA_INIT)) {                 \
-    {                                                                       \
             SCLogError(x, __VA_ARGS__);                                                            \
             exit(EXIT_FAILURE);                                                                    \
         }                                                                                          \