Handle the rewrite of "-" to "/dev/stdin" in main to leave the filena… #32

Job	Run time
cargo fmt --all -- --check	14s
Code Coverage (ubuntu-latest, unix)	2m 13s
cargo check (ubuntu-latest)	12s
cargo clippy -- -D warnings (ubuntu-latest)	20s
Code Coverage (macos-latest, macos)	6m 39s
cargo clippy -- -D warnings (macOS-latest)	23s
cargo check (macOS-latest)	14s
GNU test suite	33s
Code Coverage (windows-latest, windows)	58s
cargo check (windows-latest)	54s
cargo clippy -- -D warnings (windows-latest)	49s
cargo test (ubuntu-latest)	50s
cargo test (macOS-latest)	5m 58s
cargo test (windows-latest)	57s
	21m 14s

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