Initialise error_arg to NULL in criteria_parse
Initialise error_arg to NULL in criteria_parse

taiyu-len/sway,1ace/sway,SirCmpwn/sway,ascent12/sway,1ace/sway,taiyu-len/sway,taiyu-len/sway,1ace/sway,ascent12/sway,ascent12/sway