tweaked the --help output
diff --git a/aos/atom_code/core/LogDisplayer.cpp b/aos/atom_code/core/LogDisplayer.cpp
index d8d9f94..8f15535 100644
--- a/aos/atom_code/core/LogDisplayer.cpp
+++ b/aos/atom_code/core/LogDisplayer.cpp
@@ -29,6 +29,7 @@
" -s, --skip NUMBER skip NUMBER matching logs\n"
" // -m, --max NUMBER only display up to NUMBER logs\n"
" // -o, --format FORMAT use FORMAT to display log entries\n"
+ " -h, --help display this help and exit\n"
"\n"
"LEVEL must be DEBUG, INFO, WARNING, ERROR, or FATAL.\n"
" It defaults to INFO.\n"