fix memory leak

src/shape.c

@@ -61,6 +61,7 @@ void shp_font_free(shp_typ *shp_font){
 				current = next_shp;
 			}
 		}
+	        free(shp_font);
 	}
 }
 
@@ -1043,4 +1044,4 @@ int shp_parse_str(shp_typ *font, list_node *list_ret, int pool_idx, char *txt, d
 	}
 	if (w != NULL) *w = ofs_x; /* return the text width*/
 	return num_graph;
-}
+}