Replace the vague, incorrect, and confusing BUGS sections with CAVEATS

clearly stating which arguments have to be avoided, and mention the
header files defining the constants required for the checks.
Feedback and OK guenther@, OK bluhm@.

1 files changed, 9 insertions, 4 deletions

diff --git a/src/lib/libc/stdlib/imaxabs.3 b/src/lib/libc/stdlib/imaxabs.3
index 6e280dda8a..340be61b6e 100644
--- a/src/lib/libc/stdlib/imaxabs.3
+++ b/src/lib/libc/stdlib/imaxabs.3
@@ -29,9 +29,9 @@
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.\"     $OpenBSD: imaxabs.3,v 1.7 2014/11/30 21:21:59 schwarze Exp $
+.\"     $OpenBSD: imaxabs.3,v 1.8 2019/01/18 07:32:17 schwarze Exp $
 .\"
-.Dd $Mdocdate: November 30 2014 $
+.Dd $Mdocdate: January 18 2019 $
 .Dt IMAXABS 3
 .Os
 .Sh NAME
@@ -39,6 +39,7 @@
 .Nd integer absolute value function
 .Sh SYNOPSIS
 .In inttypes.h
+.In stdint.h
 .Ft intmax_t
 .Fn imaxabs "intmax_t j"
 .Sh DESCRIPTION
@@ -61,5 +62,9 @@ The
 .Fn imaxabs
 function conforms to
 .St -isoC-99 .
-.Sh BUGS
-The absolute value of the most negative integer remains negative.
+.Sh CAVEATS
+The result of applying
+.Fn imaxabs
+to
+.Dv INTMAX_MIN
+is undefined.