error: The short name of "-f" was already used here.
 --> tests/ui/duplicate-name/duplicate-short-name.rs:4:5
  |
4 | /     /// foo1
5 | |     #[argh(option, short = 'f')]
6 | |     foo1: u32,
  | |_____________^

error: Later usage here.
  --> tests/ui/duplicate-name/duplicate-short-name.rs:8:5
   |
 8 | /     /// foo2
 9 | |     #[argh(option, short = 'f')]
10 | |     foo2: u32,
   | |_____________^

error: The short name of "-b" was already used here.
  --> tests/ui/duplicate-name/duplicate-short-name.rs:12:5
   |
12 | /     /// bar1
13 | |     #[argh(option, short = 'b')]
14 | |     bar1: u32,
   | |_____________^

error: Later usage here.
  --> tests/ui/duplicate-name/duplicate-short-name.rs:16:5
   |
16 | /     /// bar2
17 | |     #[argh(option, short = 'b')]
18 | |     bar2: u32,
   | |_____________^
