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-rw-r--r--lib/libc/string/strerror.35
1 files changed, 4 insertions, 1 deletions
diff --git a/lib/libc/string/strerror.3 b/lib/libc/string/strerror.3
index 2d6d206..0ec6cb0 100644
--- a/lib/libc/string/strerror.3
+++ b/lib/libc/string/strerror.3
@@ -32,7 +32,7 @@
.\" @(#)strerror.3 8.1 (Berkeley) 6/9/93
.\" $FreeBSD$
.\"
-.Dd October 12, 2004
+.Dd April 5, 2011
.Dt STRERROR 3
.Os
.Sh NAME
@@ -114,6 +114,9 @@ the range 0 <
.Fa errnum
<
.Fa sys_nerr .
+The number 0 is also recognized, although applications that take advantage of
+this are likely to use unspecified values of
+.Va errno .
.Pp
If insufficient storage is provided in
.Fa strerrbuf
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