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diff --git a/original/man3/signbit.3 b/original/man3/signbit.3
index 5c375809..4b2628ea 100644
--- a/original/man3/signbit.3
+++ b/original/man3/signbit.3
@@ -1,9 +1,14 @@
 .\" Copyright 2002 Walter Harms (walter.harms@informatik.uni-oldenburg.de)
 .\" and Copyright 2008, Linux Foundation, written by Michael Kerrisk
 .\"     <mtk.manpages@gmail.com>
+.\"
+.\" %%%LICENSE_START(GPL_NOVERSION_ONELINE)
 .\" Distributed under GPL
+.\" %%%LICENSE_END
+.\"
 .\" Based on glibc infopages, copyright Free Software Foundation
-.TH SIGNBIT 3 2010-09-20 "GNU" "Linux Programmer's Manual"
+.\"
+.TH SIGNBIT 3 2013-07-04 "GNU" "Linux Programmer's Manual"
 .SH NAME
 signbit \- test sign of a real floating-point number
 .SH SYNOPSIS
@@ -53,9 +58,22 @@ macro returns nonzero if the sign of
 is negative; otherwise it returns zero.
 .SH ERRORS
 No errors occur.
-.SH "CONFORMING TO"
+.SH ATTRIBUTES
+.SS Multithreading (see pthreads(7))
+The
+.BR signbit ()
+macro is thread-safe.
+.SH CONFORMING TO
 C99, POSIX.1-2001.
 This function is defined in IEC 559 (and the appendix with
 recommended functions in IEEE 754/IEEE 854).
-.SH "SEE ALSO"
+.SH SEE ALSO
 .BR copysign (3)
+.SH COLOPHON
+This page is part of release 3.65 of the Linux
+.I man-pages
+project.
+A description of the project,
+and information about reporting bugs,
+can be found at
+\%http://www.kernel.org/doc/man\-pages/.