vlc: fix segfault on x86_64-musl

Running "tar cvvzf ..." causes a segfault (recursive call) for x86_64-musl.
Changing the command to just "tar cvzf ..." makes the segfault go away for me.

srcpkgs/vlc/template

@@ -71,6 +71,7 @@ pre_configure() {
 	sed -i -e "s|/usr/share/fonts/truetype/freefont|/usr/share/fonts/TTF|" \
 		-e 's,freetype/ftsynth.h,freetype2/ftsynth.h,' \
 		modules/text_renderer/freetype.c
+	sed -i share/Makefile.am -e 's;tar cvvzf;tar cvzf;'
 }
 pre_build() {
 	# -O[34] causes an internal compiler error with musl/gcc-4.9.2: