Prevent negative waitgroup counter bug

Client/Filesystem/FilesystemDiff.go

@@ -116,7 +116,6 @@ func (fsStatus *FilesystemStatus) parseFile(indexBucket, picksBucket *bolt.Bucke
 
 	defer func() {
 		bar.Increment()
-		fsStatusWG.Done()
 	}()
 
 	pick = picksBucket.Get([]byte(p))
@@ -126,6 +125,7 @@ func (fsStatus *FilesystemStatus) parseFile(indexBucket, picksBucket *bolt.Bucke
 		fsStatusWG.Wait()
 		fsStatusWG.Add(1)
 		fsStatus.PickedFiles = append(fsStatus.PickedFiles, p)
+		fsStatusWG.Done()
 		return
 	}
 
@@ -145,6 +145,7 @@ func (fsStatus *FilesystemStatus) parseFile(indexBucket, picksBucket *bolt.Bucke
 			fsStatusWG.Wait()
 			fsStatusWG.Add(1)
 			fsStatus.ModifiedFiles = append(fsStatus.ModifiedFiles, p)
+			fsStatusWG.Done()
 		}
 
 		return
@@ -153,6 +154,7 @@ func (fsStatus *FilesystemStatus) parseFile(indexBucket, picksBucket *bolt.Bucke
 	fsStatusWG.Wait()
 	fsStatusWG.Add(1)
 	fsStatus.NewFiles = append(fsStatus.NewFiles, p)
+	fsStatusWG.Done()
 
 	return
 }