malloc_usable_size.3: Add LIBRARY section (libc)

Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>

diff --git a/man3/malloc_usable_size.3 b/man3/malloc_usable_size.3
index 71b0f211df36e1bd7621592b131d7bcab7af7251..3af89067966243a1a987be43499b0dc93a82fa72 100644 (file)
--- a/man3/malloc_usable_size.3
+++ b/man3/malloc_usable_size.3
@@ -5,6 +5,9 @@
 .TH MALLOC_USABLE_SIZE 3  2021-03-22 "GNU" "Linux Programmer's Manual"
 .SH NAME
 malloc_usable_size \- obtain size of block of memory allocated from heap
+.SH LIBRARY
+Standard C library
+.RI ( libc ", " -lc )
 .SH SYNOPSIS
 .nf
 .B #include <malloc.h>