[ostream] Fix indentation for operator<<(..., const char32_t*) = delete.

Author: tahonermann

source/iostreams.tex

@@ -5870,7 +5870,7 @@
       operator<<(basic_ostream<char, traits>&, const char16_t*) = delete;
   template<class traits>
     basic_ostream<char, traits>&
-     operator<<(basic_ostream<char, traits>&, const char32_t*) = delete;
+      operator<<(basic_ostream<char, traits>&, const char32_t*) = delete;
   template<class traits>
     basic_ostream<wchar_t, traits>&
       operator<<(basic_ostream<wchar_t, traits>&, const char8_t*) = delete;