df2237: mode 0
df2237: iconv_open OK handle=0xfffff8008d858e00
df2237: control plain conv ret=0 consumed=2
df2237: control out [2 bytes]: 41 42
df2237: control conv_case(FROM_LOWER) 'C' ret=0 consumed=1
df2237: control out [1 bytes]: 63
df2237: mode 0 complete