fix missing newline on single row output

src/commands/ls.c

@@ -218,6 +218,9 @@ static void list_files(struct FileInfo* files, int file_len, struct FileListInfo
             }
         }
     }
+
+    if (info.total_len <= w.ws_col) printf("\n");
+
 }
 
 static bool is_dot_dir(const char* path) {