update symbols files

Git-Dch: ignore

debian/libapt-inst1.5.symbols

@@ -88,4 +88,4 @@ libapt-inst.so.1.5 libapt-inst1.5 #MINVER#
  (c++|regex|optional=std)"^std::basic_string<.+ >\(.+\)@Base$" 0.8.0
  (c++|regex|optional=std)"^typeinfo name for std::iterator<.*>@Base$" 0.8.0
  (c++|regex|optional=std)"^typeinfo for std::iterator<.*>@Base$" 0.8.0
-###
+ (c++|optional=std)"std::ctype<char>::do_widen(char) const@Base" 1.0.3