Merged from trunk -r13238:13242

   Merged from trunk -r13238:13242

   | 13239   | Add (x of y ) package counter in the "Installing" message,   |
   | zmedico | similar to the counter show in the "Emerging" message.       |
   |         | Thanks to Ned Ludd <solar@g.o> for the suggestion.           |

   | 13240   | Don't show the package counter for "Uninstalling" messages.  |
   | zmedico |                                                              |

   | 13241   | Bug #243220 - Show messages in emerge.log when old versions  |
   | zmedico | are uninstalled for AUTOCLEAN. This reverts behavior so that |
   |         | messages which used to be generated prior to portage-2.1.5.x |
   |         | (when AUTOCLEAN was moved from emerge to dblink.treewalk())  |
   |         | are generated once again.                                    |

   | 13242   | In order to eliminate the possibility of integer overflay,   |
   | zmedico | replace things like ((ret+=$?)) with ((ret|=$?)). Thanks to  |
   |         | zong_sharo for the suggestion.                               |

svn path=/main/branches/prefix/; revision=13243