/**
* \short Functor replacing repository variables
*
- * Replaces '$arch', '$basearch' and $releasever in a string
- * with the global ZYpp values.
+ * Replaces the built-in '$arch', '$basearch' and '$releasever' ans also
+ * custom repo variables (\see \ref zypp-repovars) in a string with the
+ * assigned values.
*
* Additionally $releasever_major and $releasever_minor can be used
* to refer to $releasever major number (everything up to the 1st \c '.' )