fprintf(ofp, " -s, --session Apply on session name\n");
fprintf(ofp, " -c, --channel Apply on this channel\n");
fprintf(ofp, " -a, --all-events Disable all tracepoints\n");
fprintf(ofp, " -s, --session Apply on session name\n");
fprintf(ofp, " -c, --channel Apply on this channel\n");
fprintf(ofp, " -a, --all-events Disable all tracepoints\n");