=== Message

* Fix this formatted string's syntax.
* Fix this formatted string's syntax; !z is not a valid conversion flag.
* Fix this string formatting; index 1 doesn't match any argument.
* Name unnamed conversion specifiers.
* Replace this formatting argument with a tuple.
* Replace this formatting argument with a mapping.
* Replace this value with a number as "%d" requires.
* Replace this value with an integer as "%X" requires.
* Replace this value with an integer as "*" requires.
* Add X missing argument(s).
* Remove X unexpected arguments.
* Provide a value for field "X".
* Replace this key; %-format accepts only string keys.
* Use only positional or only named field, don't mix them.
* Use only manual or only automatic field numbering, don't mix them.

