src_gid          2269 src/filemanager/file.c     gid_t src_gid = (gid_t) (-1);
src_gid          2558 src/filemanager/file.c     src_gid = src_stat.st_gid;
src_gid          2853 src/filemanager/file.c         while (ctx->preserve_uidgid && mc_chown (dst_vpath, src_uid, src_gid) != 0