[migration] Corrects help text

migration/gRPC/EosImportFilesCmd.cpp

@@ -52,7 +52,7 @@ struct EosImportFilesCmdLine {
       "    -f, --failure-modes" << std::endl <<
       "        List the distinct error messages for insertions which failed." << std::endl <<
       "    -F, --forget-failures" << std::endl <<
-      "        Remove all paths under <top_level_path> from CTAFILESFAILED." << std::endl <<
+      "        Remove all paths from CTAFILESFAILED." << std::endl <<
       "    -h, --help" << std::endl <<
       "        Prints this usage message." << std::endl <<
       "    -l, --list-failures" << std::endl <<