Kefu Chai 500eeeb12c mutation: specialize fmt::formatter<partition_region> ...

this is a part of a series to migrating from `operator<<(ostream&, ..)`
based formatting to fmtlib based formatting. the goal here is to enable
fmtlib to print `partition_region` with the help of fmt::ostream.

to help with the review process, the corresponding `to_string()` is
dropped, and its callers now switch over to `fmt::to_string()` in
this change as well. to use `fmt::to_string()` helps with consolidating
all places to use fmtlib for printing/formatting.

Refs #13245

Signed-off-by: Kefu Chai <kefu.chai@scylladb.com>

2023-03-31 19:03:14 +08:00

223 KiB

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