debug pymaster output to file

[d47081]

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[d47081]

That's strange, time to time I see following dump in error

敗捬浯⁥潴倠䵹獡整ⅲ䤊愠歳礠畯愠慧湩‬牡⁥潹⁵祭洠獡整㽲刊湵楮杮漠㨺㈺〷〱䌊楬湥⁴畑牥㩹㈠㄰挺摦㨸㔸㠲挺㤸㨵〶㜲戺ㅥ㨷㌹㌸㘺攵㩥㌴㐰ⰰ椠癮污摩椠普獯牴湩㵧⸰⸰⸰㨰0杜浡摥物癜污敶捜癬牥ぜ㈮尰慮屴尰敫屹㤳㕢㘵摥਀汃敩瑮儠敵祲›〲㨱晣㡤㠺㈵㨸㡣㔹㘺㈰㨷敢㜱㤺㠳㨳㔶敥㐺〳〴‬湩慶楬⁤湩潦瑳楲杮〽〮〮〮〺尀慧敭楤屲慶癬履汣敶屲⸰〲湜瑡ぜ歜祥㍜㌵戲㈳6䌊楬湥⁴畑牥㩹㈠㄰挺摦㨸㔸㠲挺㤸㨵〶㜲戺ㅥ㨷㌹㌸㘺攵㩥㌴㐰ⰰ椠癮污摩椠普獯牴湩㵧⸰⸰⸰㨰0杜浡摥物癜污敶捜癬牥ぜ㈮尰慮屴尰敫屹搱㝡㤰昱਀汃敩瑮儠敵祲›〲㨱晣㡤㠺㈵㨸㡣㔹㘺㈰㨷敢㜱㤺㠳㨳㔶敥㐺〳〴‬湩慶楬⁤湩潦瑳楲杮〽〮〮〮〺尀慧敭楤屲慶癬履汣敶屲⸰〲湜瑡ぜ歜祥㙜㘸攴换e䌊楬湥⁴畑牥㩹㈠㄰挺摦㨸㔸㠲挺㤸㨵〶㜲戺ㅥ㨷㌹㌸㘺攵㩥㌴㐰ⰰ椠癮污摩椠普獯牴湩㵧⸰⸰⸰㨰0杜浡摥物癜污敶捜癬牥ぜ㈮尰慮屴尰敫屹㤲㠲摡挷਀汃敩瑮儠敵祲›〲㨱晣㡤㠺㈵㨸㡣㔹㘺㈰㨷敢㜱㤺㠳㨳㔶敥㐺〳〴‬湩慶楬⁤湩潦瑳楲杮〽〮〮〮〺尀慧敭楤屲慶癬履汣敶屲⸰〲湜瑡ぜ歜祥㍜搹㉣㉡e䌊楬湥⁴畑牥㩹㈠㄰挺摦㨸㔸㠲挺㤸㨵〶㜲戺ㅥ㨷㌹㌸㘺攵㩥㌴㐰ⰰ椠癮污摩椠普獯牴湩㵧⸰⸰⸰㨰0杜浡摥物癜污敶捜癬牥ぜ㈮尰慮屴尰敫屹㠶攵㈰㘸਀汃敩瑮儠敵祲›〲㨱晣㡤㠺㈵㨸㡣㔹㘺㈰㨷敢㜱㤺㠳㨳㔶敥㐺〳〴‬湩慶楬⁤湩潦瑳楲杮〽〮〮〮〺尀慧敭楤屲慶癬履汣敶屲⸰〲湜瑡ぜ歜祥㝜づ㜸搰1䌊楬湥⁴畑牥㩹㈠㄰挺摦㨸㔸㠲挺㤸㨵〶㜲戺ㅥ㨷㌹㌸㘺攵㩥㌴㐰ⰰ椠癮污摩椠普獯牴湩㵧⸰⸰⸰㨰0杜浡摥物癜污敶捜癬牥ぜ㈮尰慮屴尰敫屹㔳㔵㔵㙢਀汃敩瑮儠敵祲›〲㨱晣㡤㠺㈵㨸㡣㔹㘺㈰㨷敢㜱㤺㠳㨳㔶敥㐺〳〴‬湩慶楬⁤湩潦瑳楲杮〽〮〮〮〺尀慧敭楤屲慶癬履汣敶屲⸰〲湜瑡ぜ歜祥㝜昳攷昰1䌊楬湥⁴畑牥㩹㈠㄰挺摦㨸㔸㠲挺㤸㨵〶㜲戺ㅥ㨷㌹㌸㘺攵㩥㌴㐰ⰰ椠癮污摩椠普獯牴湩㵧⸰⸰⸰㨰0杜浡摥物癜污敶捜癬牥ぜ㈮尰慮屴尰敫屹㠳㈵㜷㐹਀

Even mostly it's

Client Query: IP:123, invalid infostring=0.0.0.0:0\00\gamedir\valve\clver\0.20\nat\0\key\123\00\00

related to #4