[char.traits.specializations]: Use "class template" instead of "template struct".

FrankHB · FrankHB · commit 95c971d52cee · 2015-05-03T00:34:33.000+08:00
diff --git a/source/strings.tex b/source/strings.tex
@@ -301,7 +301,7 @@
 The header
 \tcode{<string>}
 shall define four
-specializations of the template struct
+specializations of the class template
 \tcode{char_traits}:
 \tcode{char_traits<\brk{}char>},
 \tcode{char_traits<char16_t>},
