Bump structopt from 0.3.14 to 0.3.19

[dependabot-preview[bot]]

Bumps structopt from 0.3.14 to 0.3.19.

Changelog

Sourced from structopt's changelog.

v0.3.19 (2020-10-08)

• Added StructOpt::from_args_safe as a shortcut for StructOpt::from_iter_safe(std::env::args_os()).
• Some links in documentation have been corrected.

v0.3.18 (2020-09-23)

• Unsafe code has been forbidden. This makes cargo geiger list structopt as "safe". Maybe it will help somebody trying to locate a bug in their dependency tree.

v0.3.17 (2020-08-25)

• Fixed a breakage with resent rustc versions due to quote_spanned misuse.

v0.3.16 (2020-08-05)

• Added the new example.
• Allow #[structopt(flatten)] fields to have doc comments. The comments are ignored.
• The paw crate is now being reexported when paw feature is enabled, see [#407](https://github.com/TeXitoi/structopt/issues/407).

v0.3.15 (2020-06-16)

• Minor documentation improvements.
• Fixed a latent bug, courtesy of @Aaron1011.

Commits

• 1cc5b05 v0.3.19
• 1cd8405 cargo fmt
• 98d5d80 If you see me, master is not as protected as we hoped
• 4486e58 Cleanup documentation
• f5a7dcc Add StructOpt::from_args_safe as a not-exiting alternative to from_args
• ff542c6 v0.3.18
• bf39770 Forbid unsafe
• 4be8bfd Adjust stderr files
• 6a7d180 v0.3.17
• f7fcda2 Fix wrong span
• Additional commits viewable in compare view

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[dependabot-preview[bot]]

Superseded by #133.