[PATCH] manual: Fix missing reference to the mmap function [BZ #20473]

[Collin Funk]

---
 manual/setjmp.texi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/manual/setjmp.texi b/manual/setjmp.texi
index 7092a0dde2..6b044bd1f9 100644
--- a/manual/setjmp.texi
+++ b/manual/setjmp.texi
@@ -347,7 +347,7 @@ @node System V contexts,, Non-Local Exits and Signals, Non-Local Exits
 sequences the GNU C compiler generates for calls to nested functions.
 Safe ways to allocate stacks correctly include using memory on the
 original thread's stack or explicitly allocating memory tagged for
-execution using (@pxref{Memory-mapped I/O}).
+execution using @code{mmap} (@pxref{Memory-mapped I/O}).
 
 @strong{Compatibility note}: The current Unix standard is very imprecise
 about the way the stack is allocated.  All implementations seem to agree
-- 
2.51.0