Update dependencies

go.mod

@@ -7,14 +7,14 @@ require (
 	github.com/emersion/go-imap v1.0.0
 	github.com/emersion/go-imap-move v0.0.0-20190710073258-6e5a51a5b342
 	github.com/emersion/go-imap-specialuse v0.0.0-20161227184202-ba031ced6a62
-	github.com/emersion/go-message v0.10.4
+	github.com/emersion/go-message v0.10.6
 	github.com/emersion/go-smtp v0.11.2
 	github.com/emersion/go-vcard v0.0.0-20190105225839-8856043f13c5
 	github.com/emersion/go-webdav v0.0.0-20180509190321-4ef680e9a32f
 	github.com/howeyc/gopass v0.0.0-20170109162249-bf9dde6d0d2c
 	github.com/martinlindhe/base36 v1.0.0 // indirect
 	github.com/stretchr/testify v1.3.0 // indirect
 	golang.org/x/crypto v0.0.0-20190701094942-4def268fd1a4
-	golang.org/x/net v0.0.0-20190724013045-ca1201d0de80 // indirect
-	golang.org/x/sys v0.0.0-20190712062909-fae7ac547cb7 // indirect
+	golang.org/x/net v0.0.0-20190813141303-74dc4d7220e7 // indirect
+	golang.org/x/sys v0.0.0-20190813064441-fde4db37ae7a // indirect
 )