Add tests for wc(1)

[ngie]

usr.bin/wc/tests/04_zh-TW.in

2

Does this require libiconv or any special build options to test?

usr.bin/wc/tests/wc_test.sh

2

Please omit -- it gets added by the build.

The copyright header is missing BTW (it doesn't matter a ton -- just a minor inconsistency).

3–84

• Please don't use camelCase names.
• Please avoid line continuations like this -- it makes the descriptions more difficult to grep for.

27

I might name this "total_bytes_ascii"

46

I might name this "total_bytes_utf8" (it matters more that non-ASCII is used than the specific locale that's used).

[aokblast]

• Fix naming convension for wc test case

[lwhsu]

Covered by dad64f0e7cadb5913d6463fc014f59f8706d316c.