cherry pick fix from sid

debian/libapt-inst1.2.symbols

@@ -1,4 +1,4 @@
-libapt-inst.so.1.2 libapt-inst1.2
+libapt-inst.so.1.2 libapt-inst1.2 #MINVER#
 * Build-Depends-Package: libapt-pkg-dev
  (c++)"ExtractTar::Done(bool)@Base" 0.8.0
  (c++)"ExtractTar::Go(pkgDirStream&)@Base" 0.8.0
@@ -113,7 +113,7 @@ libapt-inst.so.1.2 libapt-inst1.2
 # (c++|regex|optional=std)"^char\* std::[^ ]+<.+ >::_.+@Base$" 0.8.0
 # (c++|optional=std)"std::basic_string<char, std::char_traits<char>, std::allocator<char> >& std::basic_string<char, std::char_traits<char>, std::allocator<char> >::append<unsigned char*>(unsigned char*, unsigned char*)@Base" 0.8.0
 ### gcc-4.6 specific
- (c++|optional=std)"std::vector<APT::Configuration::Compressor, std::allocator<APT::Configuration::Compressor> >::~vector()@Base" 0.8.12 1
+ (c++|optional=std)"std::vector<APT::Configuration::Compressor, std::allocator<APT::Configuration::Compressor> >::~vector()@Base" 0.8.12
  (c++|optional=std)"std::basic_string<char, std::char_traits<char>, std::allocator<char> >& std::basic_string<char, std::char_traits<char>, std::allocator<char> >::_M_replace_dispatch<unsigned char*>(__gnu_cxx::__normal_iterator<char*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, __gnu_cxx::__normal_iterator<char*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, unsigned char*, unsigned char*, std::__false_type)@Base" 0.8.0
 ### try to ignore std:: template instances
  (c++|regex|optional=std)"^std::basic_string<.+ >\(.+\)@Base$" 0.8.0