Swap (macOS): display Unused instead of Disabled for 0/0

Fixes #2248

src/detection/swap/swap_apple.c

@@ -1,7 +1,7 @@
 #include "swap.h"
 
+#include "common/sysctl.h"
 #include <mach/mach.h>
-#include <sys/sysctl.h>
 
 const char* ffDetectSwap(FFlist* result) {
     struct xsw_usage xsw;
@@ -10,6 +10,12 @@ const char* ffDetectSwap(FFlist* result) {
         return "Failed to read vm.swapusage";
     }
 
+    if (xsw.xsu_total == 0) {
+        if (ffSysctlGetInt("vm.compressor_mode", 4) <= 2) {
+            return NULL; // Swap is disabled
+        }
+    }
+
     FFSwapResult* swap = ffListAdd(result);
     ffStrbufInitStatic(&swap->name, xsw.xsu_encrypted ? "Encrypted" : "Normal");
     swap->bytesTotal = xsw.xsu_total;