.BR exit (2)
except that it terminates not only the calling thread, but all threads
in the calling process's thread group.
-.SH "RETURN VALUE"
+.SH RETURN VALUE
This system call does not return.
.SH VERSIONS
This call is present since Linux 2.5.35.
-.SH "CONFORMING TO"
+.SH CONFORMING TO
This call is Linux-specific.
.SH NOTES
Since glibc 2.3, this is the system call invoked when the
.BR exit (2)
wrapper function is called.
-.SH "SEE ALSO"
+.SH SEE ALSO
.BR exit (2)