go mod: set version to 1.16 & drop explicit "-mod=vendor" from ci

This makes "go build" automatically use the vendor
directory, if present.

See https://golang.org/doc/modules/gomod-ref#go for details.

Up to now, we ignored the vendor dir completely!

Fixes https://github.com/rfjakob/gocryptfs/issues/581

1 files changed, 1 insertions, 1 deletions

diff --git a/Makefile b/Makefile
index 8720678..8f76420 100644
--- a/Makefile
+++ b/Makefile
@@ -42,6 +42,6 @@ ci:
 	go clean -modcache
 	# GOPROXY=off makes sure we fail instead of making network requests
 	# (we should not need any!)
-	GOPROXY=off ./build.bash -mod=vendor
+	GOPROXY=off ./build.bash
 	# Delete "vendor" dir
 	git clean -dxff