patch 9.1.0560: bindtextdomain() does not indicate an error

Problem:  bindtextdomain() does not indicate an error
          (after v9.1.509)
Solution: return false on failure (OOM).
          (Chris van Willegen)

closes: #15116

Signed-off-by: Christ van Willegen <cvwillegen@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/version.c b/src/version.c
index cc2713a..ddb02d1 100644
--- a/src/version.c
+++ b/src/version.c
@@ -705,6 +705,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    560,
+/**/
     559,
 /**/
     558,