deepin-terminal: fix build with vte3 0.60

https://github.com/linuxdeepin/deepin-terminal/pull/221

srcpkgs/deepin-terminal/template

@@ -1,7 +1,7 @@
 # Template file for 'deepin-terminal'
 pkgname=deepin-terminal
 version=5.0.0
-revision=1
+revision=2
 build_style=cmake
 configure_args="-DTEST_BUILD=OFF -DUSE_VENDOR_LIB=OFF"
 hostmakedepends="glib-devel gobject-introspection gperf intltool pkg-config
@@ -21,3 +21,12 @@ nocross=yes
 case $XBPS_TARGET_MACHINE in
 	*-musl) CFLAGS="-DREG_NOERROR=REG_OK"
 esac
+
+post_patch() {
+	# latest vala string#to_utf8() return char[]
+	# but term.feed_child expects "unowned uint8[]"
+	vsed -i 's/[.]to_utf8()/.data/g' \
+		widget/command_panel.vala \
+		widget/terminal.vala \
+		widget/workspace.vala
+}