Like explain-str but prints to stdout.

Given the result of a parser/validation operation, as well as the original input as a string, generate a seq of maps describing any occured errors:

• :locations: the error locations,
• :context: the part of the input-string affected,
• :message: an error message,
• :hint: an error hint for resolution, describing common causes.

Given the result of a parser/validation operation, as well as the original input as a string, generate a description of any occured errors, including:

• the original error message, including location(s),
• the part of the code affected, as well as a few lines of context,
• a hint on common causes for the given error.

Format the result of explain-data as a string.