Fix format string for 32bit systems.

llvm-svn: 207862
diff --git a/lldb/source/Plugins/Process/FreeBSD/ProcessFreeBSD.cpp b/lldb/source/Plugins/Process/FreeBSD/ProcessFreeBSD.cpp
index 92a464f..9fb022d 100644
--- a/lldb/source/Plugins/Process/FreeBSD/ProcessFreeBSD.cpp
+++ b/lldb/source/Plugins/Process/FreeBSD/ProcessFreeBSD.cpp
@@ -168,7 +168,7 @@
     }
 
     if (log)
-        log->Printf("process %lu resuming (%s)", GetID(), do_step ? "step" : "continue");
+        log->Printf("process %" PRIu64 " resuming (%s)", GetID(), do_step ? "step" : "continue");
     if (do_step)
         m_monitor->SingleStep(GetID(), m_resume_signo);
     else