wc: pass GNU test wc-proc and Windows optimization #14516

Job	Run time
Style/cargo-deny	24s
Documentation/warnings (ubuntu-latest, feat_os_unix)	1m 36s
MinRustV (ubuntu-latest, feat_os_unix)	2m 42s
Style/deps (ubuntu-latest, feat_Tier1,feat_require_unix,feat_require_unix_utmpx)	51s
Style/deps (macos-latest, feat_Tier1,feat_require_unix,feat_require_unix_utmpx)	1m 22s
Style/deps (windows-latest, feat_os_windows)	2m 3s
Code Coverage (ubuntu-latest, unix, nightly)	3m 41s
Dependencies (ubuntu-latest, feat_os_unix)	23s
Code Coverage (macos-latest, macos, nightly)	9m 5s
Code Coverage (windows-latest, windows, nightly-x86_64-pc-windows-gnu)	7m 32s
Build/stable	0s
Build	0s
Build/nightly	0s
Build/Makefile	0s
Binary sizes	0s
Tests/BusyBox test suite	0s
Tests/Toybox test suite	0s
	29m 39s

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