gofmt all files

Apparently the rules for comment formatting have changed with go 1.19.

internal/repository/doc.go

@@ -2,7 +2,7 @@
 // the following the abstractions used for this package are listed. More
 // information can be found in the restic design document.
 //
-// File
+// # File
 //
 // A file is a named handle for some data saved in the backend. For the local
 // backend, this corresponds to actual files saved to disk. Usually, the SHA256
@@ -11,18 +11,17 @@
 // encrypted before being saved in a backend. This means that the name is the
 // hash of the ciphertext.
 //
-// Blob
+// # Blob
 //
 // A blob is a number of bytes that has a type (data or tree). Blobs are
 // identified by an ID, which is the SHA256 hash of the blobs' contents. One or
 // more blobs are bundled together in a Pack and then saved to the backend.
 // Blobs are always encrypted before being bundled in a Pack.
 //
-// Pack
+// # Pack
 //
 // A Pack is a File in the backend that contains one or more (encrypted) blobs,
 // followed by a header at the end of the Pack. The header is encrypted and
 // contains the ID, type, length and offset for each blob contained in the
 // Pack.
-//
 package repository