added the missing file ierror.c
added the missing file ierror.c

Forgot to add it...

yusiwen/libmpdclient,cmende/libmpdclient,cmende/libmpdclient,jwise/libmpdclient,sl0th/libmpdclient,yusiwen/libmpdclient,cmende/libmpdclient,OpenInkpot-archive/iplinux-libmpdclient,psych0tik/libmpdclient2,sl0th/libmpdclient,jwise/libmpdclient,jagleeso/libmpdclient,jwise/libmpdclient,jagleeso/libmpdclient,yusiwen/libmpdclient,psych0tik/libmpdclient2,jagleeso/libmpdclient,sl0th/libmpdclient,OpenInkpot-archive/iplinux-libmpdclient