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Diffstat (limited to 'error_buffer.go')
-rw-r--r--error_buffer.go4
1 files changed, 3 insertions, 1 deletions
diff --git a/error_buffer.go b/error_buffer.go
index 8c240e26..78effc9b 100644
--- a/error_buffer.go
+++ b/error_buffer.go
@@ -47,7 +47,9 @@ func (eb *errBuffer) Write(p []byte) (int, error) {
eb.buf = append(eb.buf, p...)
for msg := eb.fetchMsg(); msg != nil; msg = eb.fetchMsg() {
- eb.lsn(EventStderrOutput, msg)
+ if eb.lsn != nil {
+ eb.lsn(EventStderrOutput, msg)
+ }
}
return len(p), nil