enchant.c: update my copyright dates, and update descriptive comment
enchant.c: update my copyright dates, and update descriptive comment

AbiWord/enchant,albbas/enchant,AbiWord/enchant,rrthomas/enchant,albbas/enchant,rrthomas/enchant,AbiWord/enchant,albbas/enchant,albbas/enchant,rrthomas/enchant,rrthomas/enchant,AbiWord/enchant