pfetch
plineptr = pfetch(pline);
fprintf(rejfp, "%s", pfetch(i));
fprintf(rejfp, "%c %s", pch_char(i), pfetch(i));
const char *line = pfetch(i);
fputs(pfetch(old), ofp);
fputs(pfetch(new), ofp);
fputs(pfetch(old), ofp);
fputs(pfetch(new), ofp);
fputs(pfetch(new), ofp);
char *pfetch(LINENUM);