* src/psaux/t1decode.c (T1_Operator, t1_args_count): Add opcode 15. (t1_decoder_parse_charstrings): Operator with opcode 15 pops its two arguments. Handle the case where the pops of an othersubr may be part of a subroutine. Handle unknown othersubrs gracefully: count their operands and let the following pop operators push the operands as the results onto the Type1 stack. Improve handling of setcurrentpoint opcode.