Doku cleanup

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@50545 15284696-431f-4ddb-bdfa-cd5b030d7da7

lib/raster/raster_metadata.c

@@ -90,7 +90,6 @@ void Rast_write_vdatum(const char *name, const char *str)
  * \param element  metadata component filename
  * \param name
  * \param mapset
- * \param *str  string to be populated with data
  * \return dynamically-allocated string on success
  * \return NULL on error
  */