Fixes another typo within the code. (#3173)

## About The Pull Request

I want the horrors to finally be over.

## Why It's Good For The Game

unqiue

## Changelog

:cl: Cloudbreak
code: Typographical error fixed.
/:cl:

code/modules/projectiles/guns/ballistic.dm

@@ -405,7 +405,7 @@
 		. += "The [bolt_wording] is locked back and needs to be released before firing."
 	if (suppressed)
 		. += "It has a suppressor attached that can be removed with <b>alt+click</b>."
-	. += "You can [bolt_wording] [src] by pressing the <b>unqiue action</b> key. By default, this is <b>space</b>"
+	. += "You can [bolt_wording] [src] by pressing the <b>unique action</b> key. By default, this is <b>space</b>"
 
 ///Gets the number of bullets in the gun
 /obj/item/gun/ballistic/proc/get_ammo(countchambered = TRUE)