doxygen typo fixed

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@31398 15284696-431f-4ddb-bdfa-cd5b030d7da7

lib/vector/Vlib/level_two.c

@@ -58,7 +58,7 @@ Vect_get_num_primitives (struct Map_info *map, int type)
 }
 
 /*!
-  \brief Fet number of line vectors (points, lines, centroids)
+  \brief Fetch number of line vectors (points, lines, centroids)
 
   \param map vector map