cvs_history_add
cvs_history_add((cvs_cmdop == CVS_OP_CHECKOUT) ?
cvs_history_add(histtype, cf, NULL);
void cvs_history_add(int, struct cvs_file *, const char *);
cvs_history_add(CVS_HISTORY_RELEASE, cf, NULL);
cvs_history_add(CVS_HISTORY_TAG, cf, tag_name);
cvs_history_add(CVS_HISTORY_UPDATE_CO, cf, NULL);
cvs_history_add(CVS_HISTORY_UPDATE_MERGED_ERR,
cvs_history_add(CVS_HISTORY_UPDATE_MERGED, cf, NULL);
cvs_history_add(CVS_HISTORY_UPDATE_REMOVE, cf, NULL);