patch applied (ghc-6.6/ghc): Don' t overwrite old memory with 0xaa when doing a realloc

[Ian Lynagh]

Mon Dec 18 07:24:23 PST 2006  Ian Lynagh <igloo at earth.li>
  * Don't overwrite old memory with 0xaa when doing a realloc

    M ./rts/RtsUtils.c -4 +6