tests: avoid non-portable sed command
sed -i is a GNU extension and the i command without newline as well.
Just create the file from scratch with printf to side-step the issue.
====================================Testingheadcheckingcode:CaseB-3====================================Mercurialchecksfortheintroductionofnewheadsonpush.Evolutioncomesintoplaytodetectifexistingbranchesontheserverarebeingreplacedbysomeofthenewonewepush.Thiscaseispartofaseriesoftestscheckingthisbehavior.CategoryB:simplecaseinvolvingprunedchangesetsTestCase3:multi-changesetbranch,otherispruned,restissuperceeded..old-state:....*2changesetbranch....new-state:....*oldheadissuperceeded..*oldotherispruned....expected-result:....*pushallowed....graph-summary:....Bø⇠◔B'.. | |.. A ⊗ |.. |/.. ● $ . $TESTDIR/testlib/push-checkheads-util.shTest setup---------- $ mkdir B3 $ cd B3 $ setuprepos creating basic server and client repo updating to branch default 2 files updated, 0 files merged, 0 files removed, 0 files unresolved $ cd server $ mkcommit B0 $ cd ../client $ hg pull pulling from $TESTTMP/B3/server (glob) searching for changes adding changesets adding manifests adding file changes added 1 changesets with 1 changes to 1 files new changesets d73caddc5533 (1 drafts) (run 'hgupdate' to get a working copy) $ hg up 0 0 files updated, 0 files merged, 1 files removed, 0 files unresolved $ mkcommit B1 created new head $ hg debugobsolete --record-parents `getid "desc(A0)"` 1 new obsolescence markers obsoleted 1 changesets 1 new orphan changesets $ hg debugobsolete `getid "desc(B0)" ` `getid "desc(B1)"` 1 new obsolescence markers obsoleted 1 changesets $ hg log -G --hidden @ 25c56d33e4c4 (draft): B1 | | x d73caddc5533 (draft): B0 | | | x 8aaa48160adc (draft): A0 |/ o 1e4be0697311 (public): rootActual testing-------------- $ hg push pushing to $TESTTMP/B3/server (glob) searching for changes adding changesets adding manifests adding file changes added 1 changesets with 1 changes to 1 files (+1 heads) 2 new obsolescence markers obsoleted 2 changesets $ cd ../..