Use instead of ´` for command expansion DOK-SC1077

For command expansion, the tick should slant left (` vs ´).

In some fonts it's hard to tell ticks apart, but Bash strongly distinguishes between backticks (grave accent ), forward ticks (acute accent´) and regular ticks (apostrophe'`).

Backticks denote start of command expansions, while forward ticks are considered literal. To help spot bugs, our checkers parse backticks and forward ticks interchangeably.

Exceptions:

If you want to write out literal forward ticks, such as fancyful ascii quotation marks:

echo "``Proprietary software is an injustice.´´  - Richard Stallman"

use single quotes instead:

echo '``Proprietary software is an injustice.´´  - Richard Stallman'

To nest forward ticks in command expansion, use $(..) instead of escaping it using \..``.