Merge pull request #258 from jglick/MaskingOutputStream.toString

Legible `MaskingOutputStream.toString`

Author: jtnord

src/main/java/org/jenkinsci/plugins/credentialsbinding/masking/SecretPatterns.java

@@ -135,6 +135,10 @@ public MaskingOutputStream(@NonNull OutputStream out, @NonNull Supplier<Pattern>
             }
         }
 
+        @Override public String toString() {
+            return "MaskingOutputStream[" + out + "]";
+        }
+
     }
 
     private SecretPatterns() {}