dfa: fix logic typo

Problem reported by Stephane Chazelas (Bug#24973).
* lib/dfa.c (using_simple_locale): Fix typo that caused some
non-simple locales like fr_FR to be treated as simple.

1 files changed, 2 insertions, 2 deletions

diff --git a/lib/dfa.c b/lib/dfa.c
index 744a9f1413..7b80a1a099 100644
--- a/lib/dfa.c
+++ b/lib/dfa.c
@@ -815,8 +815,8 @@ using_simple_locale (bool multibyte)
      && '}' == 125 && '~' == 126)
   };
 
-  if (native_c_charset && !multibyte)
-    return true;
+  if (!native_c_charset || multibyte)
+    return false;
   else
     {
       /* Treat C and POSIX locales as being compatible.  Also, treat