uniconv-wrappers: Avoid freeing uninitialized pointer (bug #64182). * liboctave/wrappers/uniconv-wrappers.c (octave_u8_conv_to_encoding_intern): Initialize pointer with NULL that might be freed without assignment otherwise.

root = true

[*]
charset = utf-8
end_of_line = lf
indent_size = 2
indent_style = space
insert_final_newline = true

[*.{am,mk}]
indent_size = tab
indent_style = tab