Copy string (not pointer only) from clay options (options->input_name) in clan options (clan_opt->name)

[Lnc]

Fix this code: (the free in clan_options_free is not a bug)

File clay.c Line 100

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clan_opt->name = options->input_name;
clan_opt->extbody = 1;
scop = clan_scop_extract(options->input, clan_opt);
//clan_options_free(clan_opt); // bug, the name is also freed