Don't use sed -r; instead use old-style regexp
Rev
d895158fe8af introduced some sed -r tests, but -r is only available on GNU
sed, while BSD sed uses -E. Better to use old-style regular expressions, that
way the tests work on all sed variants.
a -> a not a symlink
a -> b
now at: base.patch
applying symlink.patch
now at: symlink.patch
a -> b
now at: symlink.patch
applying removesl.patch
now at: removesl.patch
C b