(lsftp_dc_make_index): Likewise.
(lsftp_dc_r_sloppy_glob): Likewise.
(lsftp_dc_path_no_glob): Likewise.
(lsftp_dc_path_first_glob): Likewise.
General constification.

Rev: src/sftp/dc.c:1.2
Rev: src/sftp/dc.h:1.2