subrepo: (mostly) use relative path in "skipping missing subrepository" This is consistent with the other messages printed by these functions. Note that addremove is a little different and prints absolute (aka repo-relative) paths if no argument was given. Differential Revision: https://phab.mercurial-scm.org/D5900

subrepo: use relative path for "already tracked" message From 932de135041f (subrepo: warn when adding already tracked files in gitsubrepo, 2015-02-27): The file is printed with abs() to be consistent with how it is printed in workingctx, even though that is inconsistent with how added files are printed in verbose mode. However, a few year later, the same author wrote 7008f6819002 (context: name files relative to cwd in warning messages, 2017-07-11) and now it's inconsistent. This fixes that inconsistency. Differential Revision: https://phab.mercurial-scm.org/D5899