Add @sdushantha suggestion in creating directory.

sherlock/sherlock.py

@@ -620,12 +620,8 @@ def main():
             result_file = args.output
         elif args.folderoutput:
             # The usernames results should be stored in a targeted folder.
-            # If the folder doesnt exist, create it first
-            try:
-                os.mkdir(args.folderoutput)
-            except FileExistsError:
-                #directory already exists
-                pass
+            # If the folder doesn't exist, create it first
+            os.makedirs(args.folderoutput, exist_ok=True)
             result_file = os.path.join(args.folderoutput, f"{username}.txt")
         else:
             result_file = f"{username}.txt"