regrab files that don't match checksums

fix-failed-checksums.sh

#!/bin/bash

vers=$(wp core version)

for f in $(wp core verify-checksums --no-color 2>&1 >/dev/null | cut -d: -f3)
do
  if [[ `curl -Is http://core.svn.wordpress.org/tags/$vers/$f | grep "200 OK"` ]]
  then
    echo "Fetching $f"
    curl -so $f http://core.svn.wordpress.org/tags/$vers/$f
  else
    echo "Could not fetch: http://core.svn.wordpress.org/tags/$vers/$f"
  fi
done