Fix typo

Change-Id: I24a82ffcd060c72aeddddd76c4c5fe667d75f79b
Reviewed-on: https://gerrit.libreoffice.org/53833
Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Julien Nabet <serval2412@yahoo.fr>

svl/source/numbers/zforlist.cxx

@@ -1096,7 +1096,7 @@ bool SvNumberFormatter::IsNumberFormat(const OUString& sString,
         }
         ChangeIntl(pFormat->GetLanguage());
         // Avoid scanner overhead with the General format of any locale.
-        // These are never substituded above so safe to ignore.
+        // These are never substituted above so safe to ignore.
         if ((F_Index % SV_COUNTRY_LANGUAGE_OFFSET) == 0)
         {
             assert(FType == SvNumFormatType::NUMBER);