patch 9.0.1572: error messages are not translated

Problem:    Error messages are not translated.
Solution:   Add _().
diff --git a/src/version.c b/src/version.c
index 8d0d519..0d0099c 100644
--- a/src/version.c
+++ b/src/version.c
@@ -696,6 +696,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1572,
+/**/
     1571,
 /**/
     1570,