Add explicit lint-comment-style fallthrough annotations. GCC now assumes that if you don't have these you're making a mistake, which is annoying. XXX: This changeset updates the AG output files only (by hand) and is XXX: abusive - rebuilding them will erase the change. However, I need XXX: to get things to build before I can try to get AG to issue the XXX: annotations itself, so this seems like a reasonable expedient.

#ifndef HELPGEN_H
#define HELPGEN_H

struct topic; // from topic.h

void help_addtopic(struct topic *);

// in cout.c
void cout(const char *path, struct topic **topics, int ntopics);

// in htmlout.c
void htmlout(const char *path, struct topic **topics, int ntopics);

// in readhelp.syn
void load(const char *path);

#endif /* HELPGEN_H */