[Storage] show oauth token in debug log in debug build only

src/Storage/Storage.Management/ChangeLog.md

@@ -18,6 +18,8 @@
         - Additional information about change #1
 -->
 ## Upcoming Release
+* Show OAuth token in debug log in debug build only
+    -  `New-AzStorageContext`
 
 ## Version 4.5.0
 * Supported DaysAfterLastTierChangeGreaterThan in Management Policy

src/Storage/Storage/Common/AzureSessionCredential.cs

@@ -56,10 +56,12 @@ public override AccessToken GetToken(TokenRequestContext requestContext, Cancell
             {
                 token = new AccessToken(tokenValue, DateTimeOffset.UtcNow);
             });
+#if DEBUG 
             if (this.debugLogWriter != null)
             {
                 this.debugLogWriter("[" + DateTime.Now.ToString() + "] GetToken: " + token.Token);
             }
+#endif
             return token;
         }
 

src/Storage/Storage/Common/Cmdlet/NewAzureStorageContext.cs

@@ -532,7 +532,9 @@ private string GetTokenStrFromAccessToken(IAccessToken accessToken)
             {
                 tokenStr = tokenValue;
             });
+#if DEBUG
             WriteDebug(DateTime.Now.ToString() + ": token:" + tokenStr);
+#endif
             return tokenStr;
         }