+ - call dpkg --assert-multi-arch with execvp instead of execv
+ - save the universe by not printing messages about apport if a package
+ with this name is not installed (Closes: #619646)
+ * apt-pkg/depcache.cc:
+ - if a M-A:same package is marked for reinstall, mark all it's installed
+ silbings for reinstallation as well (LP: #859188)
+ * apt-pkg/contrib/configuration.cc:
+ - do not stop parent transversal in FindDir if the value is empty
+ * methods/http{s,}.cc:
+ - if a file without an extension is requested send an 'Accept: text/*'
+ header to avoid that the server chooses unsupported compressed files
+ in a content-negotation attempt (Closes: #657560)
+ - remove the arbitrary MAXLEN limit for response lines (Closes: #658346)
+ * apt-pkg/aptconfiguration.cc:
+ - chroot if needed before calling dpkg --print-foreign-architectures
+ - ensure that architectures are not added multiple times
+ * cmdline/apt-mark.cc:
+ - detect if dpkg has multiarch support before calling --set-selections
+ - correctly ignore already (un)hold packages
+ * apt-pkg/cachefile.cc:
+ - clean up lost atomic cachefiles with 'clean' (Closes: #650513)
+ * apt-pkg/indexrecords.cc:
+ - do not create empty Entries as a sideeffect of Lookup()