cachedlocalrepo: use sysstr for attribute name of "file of interest" The first item is an attribute name, the second one is a filename. So the first one can (and should) be a `str`.

terse-status: use `sysstr` to specify attributes to set We use unicode string to specify attribute and we add a explicit char for the other usage.

path-suboption: deprecated specifying the attributes as bytes The known suboptions have been updated, so we can deprecated passing bytes in case some extensions use them.

path-suboption: use str for "_pushloc" suboptions That second argument refer to an attribute and do not needs to be bytes.

path-suboption: use str for "pushrev" suboptions That second argument refer to an attribute and do not needs to be bytes.

path-suboption: use str for "bookmarks_mode" suboptions That second argument refer to an attribute and do not needs to be bytes.

path-suboption: use str for "delta_reuse_policy" suboptions That second argument refer to an attribute and do not needs to be bytes.

path-suboption: use str for "multi_urls" path suboptions That second argument refer to an attribute and do not needs to be bytes.

convert: use sysstr to check for attribute presence We do not need bytes here.

mq: use sysstr to check for attribute access We do not need bytes here.

lfs: use sysstr to check for attribute presence We do not need bytes here.

mq: use sysstr to check for attribute presence We do not need bytes here.

relink: use sysstr to check for attribute presence We do not need bytes here.

ui: use sysstr to check for attribute presence We do not need bytes here.

remotefilelog: use sysstr to access for attributes We do not need bytes here.

hgwebmod: use sysstr to check for attribute presence We do not need bytes here.

remotefilelog: use sysstr to check for attribute presence We do not need bytes here.

extensions: use sysstr to check for attribute presence We do not need bytes here.

bundle2: use sysstr to check for attribute presence We do not need bytes here.

largefile: use sysstr to check for attribute presence in `hgsubrepoarchive` We do not need bytes here.

largefile: use sysstr to check for attribute presence in `openstore` We do not need bytes here.

largefile: use sysstr to check for attribute presence in `rebase` wrapping We do not need bytes here.

largefile: use sysstr to check for attribute presence in `getstatuswriter` We do not need bytes here.

run-tests: detect HGWITHRUSTEXT value Without this, some manual check in tests/test-dirstate.t could get confused by the lack of `rust` in module policy and break the test.