broken on Linux).
- When applying C-style unescaping as well as specifier expansion on the same
- string, always apply the C-style unescaping fist, followed by the specifier
+ string, always apply the C-style unescaping first, followed by the specifier
expansion. When doing the reverse, make sure to escape `%` in specifier-style
first (i.e. `%` → `%%`), and then do C-style escaping where necessary.
- Don't use `fgets()`, it's too hard to properly handle errors such as overly
long lines. Use `read_line()` instead, which is our own function that handles
- this much nicer.
+ this much more nicely.
- Don't invoke `exit()`, ever. It is not replacement for proper error
handling. Please escalate errors up your call chain, and use normal `return`