Log Message:
devel/difftastic: update to 0.31.0

0.31 (released 11th July 2022)
Parsing

Added Hacklang and SQL support.

Updated to the latest tree-sitter parsers for C#, Dart, Elm, Gleam, Haskell,
HCL, Java, JSON, OCaml, PHP, Python, Ruby, Scala and TypeScript.
Display

Fixed an issue with inline mode where there was a blank line between every line.
Command Line Interface

Fixed language detection and filename display when one path was /dev/null and
difftastic was invoked with two arguments.