Fix root directory for Windows

src/main.rs

@@ -58,7 +58,12 @@ fn main() {
 
     // Get the root directory for the search
     let mut root_dir_buf = match matches.value_of("path") {
-        Some(path) => PathBuf::from(path),
+        Some(path) => {
+            #[cfg(windows)]
+            let path = path.replace('/', "\\");
+
+            PathBuf::from(path)
+        }
         None => current_dir.to_path_buf(),
     };
     if !fshelper::is_dir(&root_dir_buf) {