(svn r10188) -Codechange: make it a little easier to load a savegame from the console:

-g <absolute path>
 -g <relative path from current working directory>
 -g <relative path from within the savegame directory>

src/fileio.h

@@ -33,6 +33,7 @@ enum Subdirectory {
 	DATA_DIR,      ///< Subdirectory for all data (GRFs, sample.cat, intro game)
 	LANG_DIR,      ///< Subdirectory for all translation files
 	NUM_SUBDIRS,   ///< Number of subdirectories
+	NO_DIRECTORY,  ///< A path without any base directory
 };
 
 /**