Snippets for vale 3.19.0 from Alpine riscv64

Sourced from https://build.alpinelinux.org/buildlogs/build-edge-riscv64/community/vale/vale-3.19.0-r0.log.

• scanner.cc:635:9: warning: case label value is less than minimum value for type [-Wswitch-outside-range]
    635 |         case SCN_FAIL:
        |         ^~~~
  

• scanner.cc:664:11: warning: case label value is less than minimum value for type [-Wswitch-outside-range]
    664 |           case SCN_FAIL:
        |           ^~~~
  

• scanner.cc:674:11: warning: case label value is less than minimum value for type [-Wswitch-outside-range]
    674 |           case SCN_FAIL:
        |           ^~~~