man/man3/getopt_long.3: EXAMPLES: Add missing include

Signed-off-by: Alejandro Colomar <alx@kernel.org>

diff --git a/man/man3/getopt_long.3 b/man/man3/getopt_long.3
index a464349feefb87e2a41dcd0b21f0a8926de2d173..72668d7790dc9f28631622ab16decddaf6062664 100644 (file)
--- a/man/man3/getopt_long.3
+++ b/man/man3/getopt_long.3
@@ -156,8 +156,9 @@ with most of its features.
 .\" SRC BEGIN (getopt_long.c)
 .EX
 #include <getopt.h>
-#include <stdio.h>     /* for printf */
-#include <stdlib.h>    /* for exit */
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
 \&
 int
 main(int argc, char *argv[])