Fix testsuite.- t/1.simple.t: Sort the keywords in the graph output They come out in hash order which is not necessarily stable. Fixes FTBFS with perl 5.18 (Debian #711446, CPAN #85950). (iwj) - t/1.simple.t: Switch from dot to plain format GraphViz dot output has changed again, causing new build failures (Debian #755328). Use plain format instead of dot; textually comparing nested strings is just too fragile. (gregoa) https://bugs.debian.org/755328 gregor herrmann <gregoa@debian.org>