Use the new syntax for ACSL extension in tests

share/libc/netdb.c

src/plugins/aorai/tests/ya/serial.c

src/plugins/wp/tests/wp_plugin/nullable_ext.c

src/plugins/wp/tests/wp_region/annot.i

src/plugins/wp/tests/wp_region/annot/a.i

src/plugins/wp/tests/wp_region/annot/b.i

src/plugins/wp/tests/wp_region/array1.i

src/plugins/wp/tests/wp_region/array2.i

src/plugins/wp/tests/wp_region/fb_ADD.i

src/plugins/wp/tests/wp_region/fb_SORT.i

src/plugins/wp/tests/wp_region/structarray1.i

src/plugins/wp/tests/wp_tip/oracle/pp-trailing.c.out.c

src/plugins/wp/tests/wp_tip/oracle/pp-trailing.c.reparse.c

src/plugins/wp/tests/wp_tip/pp-trailing.c

src/plugins/wp/tests/wp_tip/proof.i

src/plugins/wp/tests/wp_tip/strategy.c

tests/fc_script/find-fun.t/list-functions.c

tests/libc/pwd_c.c

tests/libc/stdlib_c.c

tests/libc/string_c.c