tools/ceph_monstore_tool: add ceph-specific option example

Signed-off-by: Matan Breizman <mbreizma@redhat.com>

diff --git a/src/tools/ceph_monstore_tool.cc b/src/tools/ceph_monstore_tool.cc
index 9da7f5f5c40ec3ab6e12d4678b0e11f20ba03c38..437b45cd67600933c6fbe23e667ef40eccf7ccd0 100644 (file)
--- a/src/tools/ceph_monstore_tool.cc
+++ b/src/tools/ceph_monstore_tool.cc
@@ -232,6 +232,7 @@ void usage(const char *n, po::options_description &d)
     << "\nPlease Note:\n"
     << "* Ceph-specific options should be in the format --option-name=VAL\n"
     << "  (specifically, do not forget the '='!!)\n"
+    << "  e.g., 'dump-keys --debug-rocksdb=0'\n"
     << "* Command-specific options need to be passed after a '--'\n"
     << "  e.g., 'get monmap -- --version 10 --out /tmp/foo'"
     << std::endl;