[vgtrk] Rename vesti extractor

youtube_dl/extractor/__init__.py

@@ -246,8 +246,8 @@ from .ustream import UstreamIE, UstreamChannelIE
 from .vbox7 import Vbox7IE
 from .veehd import VeeHDIE
 from .veoh import VeohIE
-from .vesti import VestiIE
 from .vevo import VevoIE
+from .vgtrk import VGTRKIE
 from .vice import ViceIE
 from .viddler import ViddlerIE
 from .videobam import VideoBamIE