Fix the #BED and #COND() operator in C2

[Akron]

Fix #70 first!

The #COND(...) or #BED(...) operator is not implemented properly. E.g. #BED(Baum, sa) throws an error Early closing parenthesis. Possibly lacking arguments for operator., indicating more parameters are expected. The problem is that Koral expects an additional space preceding the comma, so #BED(Baum , sa) works.