params: fix misleading comments (#29684)

Author: NathanBSC

params/config.go

@@ -566,17 +566,17 @@ func (c *ChainConfig) IsShanghai(num *big.Int, time uint64) bool {
 	return c.IsLondon(num) && isTimestampForked(c.ShanghaiTime, time)
 }
 
-// IsCancun returns whether num is either equal to the Cancun fork time or greater.
+// IsCancun returns whether time is either equal to the Cancun fork time or greater.
 func (c *ChainConfig) IsCancun(num *big.Int, time uint64) bool {
 	return c.IsLondon(num) && isTimestampForked(c.CancunTime, time)
 }
 
-// IsPrague returns whether num is either equal to the Prague fork time or greater.
+// IsPrague returns whether time is either equal to the Prague fork time or greater.
 func (c *ChainConfig) IsPrague(num *big.Int, time uint64) bool {
 	return c.IsLondon(num) && isTimestampForked(c.PragueTime, time)
 }
 
-// IsVerkle returns whether num is either equal to the Verkle fork time or greater.
+// IsVerkle returns whether time is either equal to the Verkle fork time or greater.
 func (c *ChainConfig) IsVerkle(num *big.Int, time uint64) bool {
 	return c.IsLondon(num) && isTimestampForked(c.VerkleTime, time)
 }