message: [terminal] Capabilities: Fixes Smulx sequence.
diff: @@ -339,7 +339,7 @@ namespace
  String{ Undefined, "Smol"sv, "\033[53m"sv },
  // Set styled underscore.
  - String{ Undefined, "Smulx"sv, "\E[4:%p1%dm"sv },
  + String{ Undefined, "Smulx"sv, "\033[4:%p1%dm"sv },
  // Set underscore color.
  String{ Undefined, "Setulc"sv, "\033[58:2:%p1%{65536}%/%d:%p1%{256}%/%{255}%&%d:%p1%{255}%&%d%;m"sv },
  