Escape quotes in completions

[tilpner]

rustup just exposed completion generation, but fish complains about the generated completions

Unexpected end of string, quotes are not balanced
~/.config/fish/completions/rustup.fish (line 188): complete -c rustup -n '__fish_using_command rustup help' -s V -l version -d 'Prints version information'

                  ^
from sourcing file ~/.config/fish/completions/rustup.fish
    called on standard input

in command substitution
    called on standard input

source: Error while reading file “/home/till/.config/fish/completions/rustup.fish”

The completions don't escape the help items, leading to the ' in "Don't" ending the help string, breaking the rest of the file.

ping @brson

[kbknapp]

Thanks for the heads up! I should have this fixed first thing tomorrow 👍

[kbknapp]

This is fixed in #705

Once it merges I'll put v2.16.2 on crates.io