pub fn strip_shebang(input: &str) -> Option<usize>Expand description
rustc allows files to have a shebang, e.g. “#!/usr/bin/rustrun”,
but shebang isn’t a part of rust syntax, so this function
skips the line if it starts with a shebang (“#!”).
Line won’t be skipped if it represents a valid Rust syntax
(e.g. “#![deny(missing_docs)]”).