vala: fix name of temporary file used in vala rules Unquoted `@' characters in a "..." string in the automake script were causing slightly wrong rules to be emitted in the generated Makefile.in; i.e., rules like: rm -f $@ && echo stamp > $10t instead of the expected: rm -f $@ && echo stamp > $@-t * automake.in (lang_vala_finish_target): Fix that. * tests/vala.test: Enhance.