reachable.hon commit setup: convert setup_git_directory_gently_1 et al. to strbuf (7333ed1)
   1#ifndef REACHEABLE_H
   2#define REACHEABLE_H
   3
   4struct progress;
   5extern void mark_reachable_objects(struct rev_info *revs, int mark_reflog, struct progress *);
   6
   7#endif