modifications to dirOption

BLL/CommitDetail.cs

@@ -36,12 +36,7 @@ public class CommitDetail
 
     public CommitDetail(string? dir)
     {
-        if (!String.IsNullOrEmpty(dir)) {
-            _selectedDir = dir;
-        } else {
-            _selectedDir = Directory.GetCurrentDirectory();
-        }
-
+        _selectedDir = !String.IsNullOrEmpty(dir) ? dir : Directory.GetCurrentDirectory();
         _authors = new List<string>();
         _commitDetails = new SortedList<string, int>();
         _currentBranch = GetCurrentBranch();