I found a pluralization bug, which I reproduced on Meta Ask Ubuntu and Meta SE (and probably other places, but that is where I tried it). "Too long by 1 characters" is wrong. It should be "Too long by one character". Oh, and please don't bludgeon me with a giant S :)
Here's a screenshot of the issue. I tested it on Ask Ubuntu Meta and in the formatting sandbox.
Summary: in the comment edit box, when edit would be too long by one character, it says "Too long by 1 characters", plural. That is incorrect.
Too long by 1 characters
is too long by 1 character.