Bug 27608: [20.05] Corrects 'accepted by' inconsistency in suggestion.tt

Bug 27608: [20.05] Corrects 'accepted by' inconsistency in suggestion.tt

When looking at an accepted suggestion in suggestion.pl, under 'Suggestion management', the displayed cardnumber in parenthesis is the wrong one.  It displays the "suggestedby"'s cardnumber instead of the acceptedby.

Test:
- create a suggestion in OPAC or staff client with user A.
- In staff client, go to accept it with User B.
- Click Edit
- Under section "Suggestion management", you have a "Accepted on".
- In the By column, the cardnumber in parenthsis is not the B one.
- Apply patch, refresh.

Looking at the code patch is self-explanatory.

Sponsored-by: Collecto
Signed-off-by: Lucas Gass <lucas@bywatersolutions.com>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
JD Amended patch: Add sponsor line

Signed-off-by: Andrew Fuerste-Henry <andrew@bywatersolutions.com>