when NANO_WIDE is defined, use MB_CUR_MAX only when the NO_UTF8 flag is
not set


git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@2236 35c25a1d-7b9e-4130-9fde-d3aeb78583b8
diff --git a/src/winio.c b/src/winio.c
index b4a143c..a7007e5 100644
--- a/src/winio.c
+++ b/src/winio.c
@@ -2288,13 +2288,12 @@
 
     alloc_len = display_string_len(buf + start_index, start_col,
 	start_col + len);
-    alloc_len +=
 #ifdef NANO_WIDE
-	MB_CUR_MAX
-#else
-	1
+    if (!ISSET(NO_UTF8))
+	alloc_len += MB_CUR_MAX * 2;
+    else
 #endif
-	 * 2;
+	alloc_len += 2;
 
     converted = charalloc(alloc_len + 1);
     index = 0;