ceph: fix 'pg' error message to direct user toward better input

Signed-off-by: Dan Mick <dan.mick@inktank.com>

diff --git a/src/tools/common.cc b/src/tools/common.cc
index 9a3763a34aeaf8b2aaa6c70d5a25c8f890da2e39..13aff67ac6e3ee5016228f81da7c935eec30b4ed 100644 (file)
--- a/src/tools/common.cc
+++ b/src/tools/common.cc
@@ -274,7 +274,7 @@ int do_command(CephToolCtx *ctx,
   }
   if (cmd.size() > 0 && cmd[0] == "pg") {
     if (cmd.size() == 1) {
-      cerr << "no pgid specified" << std::endl;
+      cerr << "pg requires at least one argument" << std::endl;
       return -EINVAL;
     }
     if (pending_target_pgid.parse(cmd[1].c_str())) {