erl_interface: Fix C++ compile error

"export" is a reserved C++ keyword.

lib/erl_interface/include/ei.h:290:9:
error: expected ‘;’ after struct definition
         } export;
         ^
lib/erl_interface/include/ei.h:290:11:
error: expected unqualified-id before ‘export’
         } export;
           ^

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/erl_interface/include/ei.h b/lib/erl_interface/include/ei.h
index 591367dc95..a860df3f77 100644
--- a/lib/erl_interface/include/ei.h
+++ b/lib/erl_interface/include/ei.h
@@ -287,7 +287,7 @@ typedef struct {
         struct {
             char* func;
             int func_allocated;
-        } export;
+        } exprt;
     } u;
 } erlang_fun;