Update github.com/emersion/go-textwrapper commit hash to 65d8968

This MR contains the following updates:

Package	Type	Update	Change
github.com/emersion/go-textwrapper	require	digest	d0e65e5 -> 65d8968

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go.mod

@@ -8,7 +8,7 @@ require (
 	github.com/bbrks/wrap v2.3.0+incompatible
 	github.com/cenkalti/backoff v2.2.1+incompatible
 	github.com/coreos/go-systemd v0.0.0-20191104093116-d3cd4ed1dbcf
-	github.com/emersion/go-textwrapper v0.0.0-20160606182133-d0e65e56babe
+	github.com/emersion/go-textwrapper 65d896831594
 	github.com/google/go-cmp v0.4.0
 	github.com/gorilla/handlers v1.4.2
 	github.com/lunixbochs/struc v0.0.0-20190916212049-a5c72983bc42