Xbox: Additional song folders fix

stepmania/src/RageFileDriverDirectHelpers.cpp

@@ -238,6 +238,13 @@ void DirectFilenameDB::PopulateFileSet( FileSet &fs, const CString &path )
 {
 	CString sPath = path;
 
+#if defined(XBOX)
+	/* Xbox doesn't handle path names which end with ".", which are used when using an
+	 * alternative song directory */
+	if(sPath.size() > 0 && sPath.Right(1) == ".")
+		sPath.erase(sPath.size() - 1);
+#endif
+
 	/* Resolve path cases (path/Path -> PATH/path). */
 	ResolvePath( sPath );