Fix ill-chosen use of "private" as an argument and struct field name.

"private" is a keyword in C++, so this breaks the poorly-enforced policy
that header files should be include-able in C++ code.  Per report from
Craig Ringer and some investigation with cpluspluscheck.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/include/fmgr.h b/src/include/fmgr.h
index 99213bc1179..2813b29af5f 100644
--- a/src/include/fmgr.h
+++ b/src/include/fmgr.h
@@ -563,7 +563,7 @@ typedef enum FmgrHookEventType
 typedef bool (*needs_fmgr_hook_type)(Oid fn_oid);
 
 typedef void (*fmgr_hook_type)(FmgrHookEventType event,
-							   FmgrInfo *flinfo, Datum *private);
+							   FmgrInfo *flinfo, Datum *arg);
 
 extern PGDLLIMPORT needs_fmgr_hook_type	needs_fmgr_hook;
 extern PGDLLIMPORT fmgr_hook_type		fmgr_hook;