(svn r11929) -Fix (r9981)[FS#1624]: [autoreplace] fixed a case where a single headed locomotive caused an assert when being replaced to a dualheaded one
This triggered if the player had enough money to replace and refit one of them but not enough to refit the last one as well

Makefile*
bin/*
!bin/data/chars.grf
!bin/data/openttdd.grf
!bin/data/openttdw.grf
!bin/data/opntitle.grf
!bin/scenario/README
!bin/scripts*
config.*
objs/*
src/rev.cpp