xcalc -rpn does not accept comma in numeric keypad as decimal mark

[Jarno Suni]

xcalc -rpn: comma on numeric keypad does not work as decimal mark; nothing is displayed. It works, if xcalc is started without -rpn option, but it is different kind of calculator then. (European keyboard has comma there in the numeric keypad.)
Comma key on numeric keypad should work as decimal mark in "xcalc -rpn", too.

Anyway, xcalc displays comma as desimal mark, when dot is chosen in the GUI, or when dot is pressed in keyboard (at least in my system, Finnish locale LC_NUMERIC=fi_FI.UTF-8). IMO comma should work as well.

PS. xcalc has other oddities: if Num lock is on, digit keys are not effective elsewhere, but in numeric keypad, which works even if Num lock is off.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: x11-apps 7.7+2
ProcVersionSignature: Ubuntu 3.13.0-61.100-lowlatency 3.13.11-ckt22
Uname: Linux 3.13.0-61-lowlatency x86_64
ApportVersion: 2.14.1-0ubuntu3.11
Architecture: amd64
CurrentDesktop: XFCE
Date: Sat Aug 1 17:36:09 2015
EcryptfsInUse: Yes
InstallationDate: Installed on 2014-09-21 (314 days ago)
InstallationMedia: Ubuntu-Studio 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.1)
SourcePackage: x11-apps
UpgradeStatus: No upgrade log present (probably fresh install)