QMimeMagicRule: fix inconsequential out-of-bounds access

The penultimate entry in mimeRuleTypes_strings is "byte", which, incl. the
terminating NUL character, has length five. But 65-59 == 6, so the last index
in magicRuleType_indices was off by one. No harm done, since there's one more
NUL (three in total...), but fix for the next reader of the code.

Change-Id: Ibdf855014a313a0486d013c9d06d55cea96435fd
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

src/corelib/mimetypes/qmimemagicrule.cpp

@@ -65,7 +65,7 @@ static const char magicRuleTypes_string[] =
     "\0";
 
 static const int magicRuleTypes_indices[] = {
-    0, 8, 15, 22, 29, 35, 41, 50, 59, 65, 0
+    0, 8, 15, 22, 29, 35, 41, 50, 59, 64, 0
 };
 
 QMimeMagicRule::Type QMimeMagicRule::type(const QByteArray &theTypeName)