Merge pull request #753 from peco/fix-ignored-errors

very minor tidying

layout.go

@@ -940,6 +940,9 @@ func (l *BasicLayout) DrawScreen(state *Peco, options *hub.DrawOptions) {
 	}
 
 	if err := l.screen.Flush(); err != nil {
+		if pdebug.Enabled {
+			pdebug.Printf("screen.Flush error: %s", err)
+		}
 		return
 	}
 }

source.go

@@ -132,7 +132,7 @@ func (s *Source) Setup(ctx context.Context, state *Peco) {
 			}
 			if closer, ok := s.in.(io.Closer); ok {
 				s.inClosed = true
-				_ = closer.Close()
+				closer.Close() // best-effort cleanup; error is not actionable
 			}
 		}()