fix grass script install

Author: jef-n

src/plugins/grass/scripts/CMakeLists.txt

@@ -1,6 +1,6 @@
-IF (GRASS_NUM_VERSION GREATER 60300)
+IF (GRASS_NUM_VERSION6 GREATER 60300 OR GRASS_NUM_VERSION7 GREATER 60300)
 FILE (GLOB MODULE_FILES *.py )
 INSTALL (FILES ${MODULE_FILES}
          DESTINATION ${QGIS_DATA_DIR}/grass/scripts
 	 PERMISSIONS OWNER_READ OWNER_WRITE OWNER_EXECUTE GROUP_READ GROUP_EXECUTE WORLD_READ WORLD_EXECUTE )
-ENDIF (GRASS_NUM_VERSION GREATER 60300)
+ENDIF (GRASS_NUM_VERSION6 GREATER 60300 OR GRASS_NUM_VERSION7 GREATER 60300)