update: show "use 'hg evolve' to..." hint iff evolve command enabled
Before this patch, one had to enable *all* commands (by including
"allnewcommands" in the experimental.evolution config) for the hint to
be shown.
#require test-repo pyflakes
Copied from Mercurial core (60ee2593a270)
$ cd "`dirname "$TESTDIR"`"
run pyflakes on all tracked files ending in .py or without a file ending
(skipping binary file random-seed)
$ hg locate 'set:(**.py or grep("^#!.*python")) - removed()' 2>/dev/null \
> | xargs pyflakes 2>/dev/null