Fix cli.js always opening from WSL shell

Also support relative paths

Fixes microsoft#13138

win32/bin/code.sh

@@ -6,6 +6,14 @@
 NAME="@@NAME@@"
 VSCODE_PATH="$(dirname "$(dirname "$(realpath "$0")")")"
 ELECTRON="$VSCODE_PATH/$NAME.exe"
+if grep -q Microsoft /proc/version; then
+	# If running under WSL don't pass cli.js to Electron as environment vars
+	# cannot be transferred from WSL to Windows
+	# See: https://github.com/Microsoft/BashOnWindows/issues/1363
+	#      https://github.com/Microsoft/BashOnWindows/issues/1494
+	"$ELECTRON" "$@"
+	exit $?
+fi
 if [ "$(expr substr $(uname -s) 1 9)" == "CYGWIN_NT" ]; then
 	CLI=$(cygpath -m "$VSCODE_PATH/resources/app/out/cli.js")
 else