Change the NULL to a 0 since we need a uint32_t

git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@163625 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/source/Commands/CommandObjectFrame.cpp b/source/Commands/CommandObjectFrame.cpp
index ccbd974..0ac8e92 100644
--- a/source/Commands/CommandObjectFrame.cpp
+++ b/source/Commands/CommandObjectFrame.cpp
@@ -307,7 +307,7 @@
 CommandObjectFrameSelect::CommandOptions::g_option_table[] =
 {
 { LLDB_OPT_SET_1, false, "relative", 'r', required_argument, NULL, 0, eArgTypeOffset, "A relative frame index offset from the current frame index."},
-{ 0, false, NULL, 0, 0, NULL, NULL, eArgTypeNone, NULL }
+{ 0, false, NULL, 0, 0, NULL, 0, eArgTypeNone, NULL }
 };
 
 #pragma mark CommandObjectFrameVariable