Adjust 'Failed to set up high priority' message

#2436 (comment)

Author: AndreyAkinshin

src/BenchmarkDotNet/Extensions/ProcessExtensions.cs

@@ -32,7 +32,7 @@ public static void EnsureHighPriority(this Process process, ILogger logger)
             }
             catch (Exception ex)
             {
-                logger.WriteLineError($"Failed to set up high priority. Make sure you have the right permissions. Message: {ex.Message}");
+                logger.WriteLineInfo($"// Failed to set up high priority ({ex.Message}). In order to run benchmarks with high priority, make sure you have the right permissions.");
             }
         }