Fix typos in models/ and modules/ (#1248)

modules/lfs/content_store.go

@@ -20,7 +20,7 @@ type ContentStore struct {
 	BasePath string
 }
 
-// Get takes a Meta object and retreives the content from the store, returning
+// Get takes a Meta object and retrieves the content from the store, returning
 // it as an io.Reader. If fromByte > 0, the reader starts from that byte
 func (s *ContentStore) Get(meta *models.LFSMetaObject, fromByte int64) (io.ReadCloser, error) {
 	path := filepath.Join(s.BasePath, transformKey(meta.Oid))

modules/lfs/server.go

@@ -50,7 +50,7 @@ type BatchResponse struct {
 	Objects  []*Representation `json:"objects"`
 }
 
-// Representation is object medata as seen by clients of the lfs server.
+// Representation is object metadata as seen by clients of the lfs server.
 type Representation struct {
 	Oid     string           `json:"oid"`
 	Size    int64            `json:"size"`