rustls: add strerror.h include

Follow-up to 2f0bb864c12

diff --git a/lib/vtls/rustls.c b/lib/vtls/rustls.c
index be2e739e00cfe52de6c98af025ad83fac272407c..2ac97ce28e7e22f3b2e12347e3cc742b65ab2fd5 100644 (file)
--- a/lib/vtls/rustls.c
+++ b/lib/vtls/rustls.c
@@ -34,7 +34,7 @@
 #include "sendf.h"
 #include "vtls.h"
 #include "select.h"
-
+#include "strerror.h"
 #include "multiif.h"
 
 struct ssl_backend_data