No he has not. But he got worse over time, and had less people to gainsay his decisions.
The famous OT whine is definitely when Luke "was gonna head down to Tosche Station to pick up some power converters!" Luke at least had a character arc that took him from whiny farmboy to sacrificial Jedi. His voice and dialogue changed to represent that. Whiny characters aren't inherently bad if they have a purpose for the whinyness.
And 2/3 of Creepio's dialogue.
__________________ Recently Produced and Distributed Young but High-Ranking Political Figure of Royal Ancestry within the Modern American Town Affectionately Referred To as Bel-Air.