Global: replaces NULL to nullptr

src/detection/loadavg/loadavg_bsd.c

@@ -13,11 +13,11 @@
 const char* ffDetectLoadavg(double result[3]) {
     struct loadavg load;
     size_t size = sizeof(load);
-    if (sysctl((int[]) { CTL_VM, VM_LOADAVG }, 2, &load, &size, NULL, 0) < 0) {
+    if (sysctl((int[]) { CTL_VM, VM_LOADAVG }, 2, &load, &size, nullptr, 0) < 0) {
         return "sysctl({CTL_VM, VM_LOADAVG}) failed";
     }
     for (int i = 0; i < 3; i++) {
         result[i] = (double) load.ldavg[i] / (double) load.fscale;
     }
-    return NULL;
+    return nullptr;
 }

src/detection/loadavg/loadavg_linux.c

@@ -13,7 +13,7 @@ const char* ffDetectLoadavg(double result[3]) {
         buf[nRead] = '\0';
 
         if (sscanf(buf, "%lf%lf%lf", &result[0], &result[1], &result[2]) == 3) {
-            return NULL;
+            return nullptr;
         }
     }
 
@@ -29,5 +29,5 @@ const char* ffDetectLoadavg(double result[3]) {
         result[i] = (double) si.loads[i] / (1 << SI_LOAD_SHIFT);
     }
 #endif
-    return NULL;
+    return nullptr;
 }

src/detection/loadavg/loadavg_sunos.c

@@ -3,5 +3,5 @@
 #include <sys/loadavg.h>
 
 const char* ffDetectLoadavg(double result[3]) {
-    return getloadavg(result, 3) == 3 ? NULL : "getloadavg() failed";
+    return getloadavg(result, 3) == 3 ? nullptr : "getloadavg() failed";
 }