youtube-dl: update version

Signed-off-by: Adrian Panella <ianchi74@outlook.com>

multimedia/youtube-dl/Makefile

@@ -8,12 +8,12 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=youtube-dl
-PKG_VERSION:=2017.06.05
+PKG_VERSION:=2017.09.11
 PKG_RELEASE:=1
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=https://yt-dl.org/downloads/$(PKG_VERSION)/
-PKG_HASH:=b54ca848490285909d0830c04c19376c2d78da74d8de0056387b11ba34234e8c
+PKG_HASH:=8b6defdd7cb9a8228eca2ef03a8c203a3ccba1ed97cb700f11b40a3af548212a
 PKG_BUILD_DIR:=$(BUILD_DIR)/$(PKG_NAME)
 
 PKG_LICENSE:=Unlicense