mute log

Former-commit-id: 090152fcebd69beec8fbeda27d8c1b91aa86f001

cpp/conf/log_config.conf

@@ -3,7 +3,7 @@
     FILENAME                =   "/tmp/milvus/logs/milvus-%datetime{%H:%m}-global.log"
     ENABLED                 =   true
     TO_FILE                 =   true
-    TO_STANDARD_OUTPUT      =   true
+    TO_STANDARD_OUTPUT      =   false
     SUBSECOND_PRECISION     =   3
     PERFORMANCE_TRACKING    =   false
     MAX_LOG_FILE_SIZE       =   2097152 ## Throw log files away after 2MB
@@ -17,7 +17,7 @@
 * VERBOSE:
     FORMAT                  =   "%datetime{%d/%M/%y} | %level-%vlevel | %msg"
     TO_FILE                 =   false
-    TO_STANDARD_OUTPUT      =   true
+    TO_STANDARD_OUTPUT      =   false
 ## Error logs
 * ERROR:
     ENABLED                 =   false