string fix

diff --git a/src/osdc/Journaler.h b/src/osdc/Journaler.h
index 26a52cfd57c7415ae2dbe32d2bbef4f033399aab..5d12d75a31f860f170424b4b4782d2dab6445c8b 100644 (file)
--- a/src/osdc/Journaler.h
+++ b/src/osdc/Journaler.h
@@ -71,7 +71,7 @@ public:
     string magic;
     ceph_file_layout layout;
 
-    Header(const char *m=0) :
+    Header(const char *m="") :
       trimmed_pos(0), expire_pos(0), read_pos(0), write_pos(0),
       magic(m) { }