Make --exclude-ns actually work correctly

Author: rctcwyvrn

Sources/RegexBenchmark/CLI.swift

@@ -31,11 +31,7 @@ struct Runner: ParsableCommand {
 
   mutating func run() throws {
     var runner = BenchmarkRunner.makeRunner(samples, outputPath)
-    
-    if excludeNs {
-      self.specificBenchmarks.append("((?!NS).)*")
-    }
-    
+        
     if !self.specificBenchmarks.isEmpty {
       runner.suite = runner.suite.filter { b in
         specificBenchmarks.contains { pattern in
@@ -44,6 +40,10 @@ struct Runner: ParsableCommand {
       }
     }
 
+    if excludeNs {
+      runner.suite = runner.suite.filter { b in !b.name.contains("NS") }
+    }
+    
     switch (profile, debug) {
     case (true, true): print("Cannot run both profile and debug")
     case (true, false): runner.profile()