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fix capital R in ch27

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Victorhck 2021-04-20 19:19:57 +02:00
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ch27_vimscript_functions.md
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@ -227,7 +227,7 @@ function! Buffet(...)
endfunction
echo Buffet("Noodles", "Sushi")
" Returns "Noodles Sushi"
" returns "Noodles Sushi"
```
The problem with this approach is if you now run `echo Buffet("Noodles")` (with only one variable), Vim complains that it has an undefined variable `a:2`. How can you make it flexible enough to display exactly what the user gives?