Have "ascii_print()" do the "-A" output, and nothing but the "-A"

Have "ascii_print()" do the "-A" output, and nothing but the "-A"
output.  Have "hex_and_ascii_print_with_offset()" and
"hex_and_ascii_print()" to the "-X"-style offset, leaving
"hex_print_with_offset()" and "hex_print()" doing the "-x"-style output.
Don't have any of them check "xflag", "Xflag", or "Aflag" - they print
what they're intended to print, and the caller should check the flags in
question.

Don't have "-A" set "xflag" or "Xflag".

This cleans up some problems with "-A" printing hex informatioin - it's
not supposed to.