fix leading slash (#19)

* fix leading slash

* Update package.json

Co-authored-by: Melvin Vermeer <[email protected]>

Author: gaultierq

index.js

@@ -24,7 +24,7 @@ function getAbsolutePath(relativePath, context, rootDir, prefix) {
       path.join(path.dirname(context.getFilename()), relativePath)
     )
     .split(path.sep)
-  ].join("/");
+  ].filter(String).join("/");
 }
 
 const message = "import statements should have an absolute path";