Add doc stubs to all the packages

cmd/restic/doc.go

@@ -0,0 +1,2 @@
+// This package contains the code for the restic executable.
+package main

crypto/doc.go

@@ -0,0 +1,2 @@
+// Package crypto provides all cryptographic operations needed in restic.
+package crypto

debug/doc.go

@@ -0,0 +1,2 @@
+// Package debug provides an infrastructure for logging debug information and breakpoints.
+package debug

pack/doc.go

@@ -0,0 +1,2 @@
+// Package pack provides functions for combining and parsing pack files.
+package pack

pipe/doc.go

@@ -0,0 +1,2 @@
+// Package pipe implements walking a directory in a deterministic order.
+package pipe

server/doc.go

@@ -0,0 +1,2 @@
+// Package server implements a restic repository on top of a backend.
+package server

test/doc.go

@@ -0,0 +1,2 @@
+// Package test_helper provides helper functions for writing tests for restic.
+package test_helper