SACRAMENTO – If voters reject Gov. Arnold Schwarzenegger's $15 billion fiscal-recovery bond measure in March, his administration said yesterday, a backup bond plan would be smaller than originally thought and would leave a larger budget gap. The governor's top budget aide, Donna Arduin, notified legislators yesterday that the amount of the backup bond, if it survives a court challenge, would drop from $10.7 billion to $8.6 billion. Arduin said the amount of the bond is determined by the deficit at the end of the fiscal year last June, and the deficit has recently been recalculated to be about $2 billion...