test-obsolete: use 'log -T {node}' instead of 'id --debug -i' to lookup hash
I ran into a case when adding a test where there were cryptic hg command line
errors. I eventually traced it back to 'hg id' printing debug messages before
the hash:
invalid branchheads cache (served): tip differs <hash>
This method should eliminate any other output except the node.
#require symlink
http://mercurial.selenic.com/bts/issue1438
$ hg init
$ ln -s foo link
$ hg add link
$ hg ci -mbad link
$ hg rm link
$ hg ci -mok
$ hg diff -g -r 0:1 > bad.patch
$ hg up 0
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg import --no-commit bad.patch
applying bad.patch
$ hg status
R link
? bad.patch