Merge null/pattern checks into complex pattern.

Aaru.Core/Devices/Dumping/Sbc/Dump.cs

@@ -1254,8 +1254,7 @@ partial class Dump
         if(maxSpeed > 0)
             UpdateStatus?.Invoke($"Fastest speed burst: {maxSpeed:F3} MiB/sec.");
 
-        if(minSpeed > 0 &&
-           minSpeed < double.MaxValue)
+        if(minSpeed is > 0 and < double.MaxValue)
             UpdateStatus?.Invoke($"Slowest speed burst: {minSpeed:F3} MiB/sec.");
 
         UpdateStatus?.Invoke($"{_resume.BadBlocks.Count} sectors could not be read.");