CORTX-34154: motr logs are not in compressed format

Modified the m0reportbug script to correctly print the size of disk usage of the specified directory

Author: swapnil-seagate

utils/m0reportbug

@@ -159,7 +159,7 @@ main() {
     # Helps in debugging, If m0reportbug fails due to huge size
     echo "du -sh $LIVE_CORE_DIR" >&2
     du_output=`du -sh "$LIVE_CORE_DIR" 2>&1`
-    echo "$du_output" >&2
+    du_size=`echo $du_output | awk '{print $1}'`
     echo "The size of $LIVE_CORE_DIR is : $du_size"
 
     # Create directory and put only latest files created into it.