Add missing newline at EOF in *.csx

src/Test/Perf/StackDepthTest/runner.csx

@@ -73,4 +73,4 @@ while (low != high)
     }
 }
 
-Console.WriteLine($"Break even point: {low}");
\ No newline at end of file
+Console.WriteLine($"Break even point: {low}");

src/Tools/Github/GithubMergeTool/auth.csx

@@ -25,4 +25,4 @@ private static async Task<string> GetAccessToken(string authority, string resour
 
     var authResult = await ctx.AcquireTokenAsync(resource, clientCred);
     return authResult.AccessToken;
-}
\ No newline at end of file
+}