[RFA v2 09/13] Return EXT_LANG_BT_ERROR in one more spot in py-framefilter.c

[Tom Tromey <tom@tromey.com>]

While reading py-framefilter.c, I found one spot where an exception
could be caught but then not be turned into EXT_LANG_BT_ERROR.  This
patch fixes this spot.

ChangeLog
2017-08-13  Tom Tromey  <tom@tromey.com>

	* python/py-framefilter.c (py_print_single_arg): Return
	EXT_LANG_BT_ERROR from catch.
---
 gdb/ChangeLog               | 5 +++++
 gdb/python/py-framefilter.c | 1 +
 2 files changed, 6 insertions(+)

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 630e27b..e5aeb22 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,5 +1,10 @@
 2017-08-13  Tom Tromey  <tom@tromey.com>
 
+	* python/py-framefilter.c (py_print_single_arg): Return
+	EXT_LANG_BT_ERROR from catch.
+
+2017-08-13  Tom Tromey  <tom@tromey.com>
+
 	PR backtrace/15584:
 	* stack.c (backtrace_command_1): Move some code into no-filters
 	"if".
diff --git a/gdb/python/py-framefilter.c b/gdb/python/py-framefilter.c
index 76e637c..73f2a31 100644
--- a/gdb/python/py-framefilter.c
+++ b/gdb/python/py-framefilter.c
@@ -457,6 +457,7 @@ py_print_single_arg (struct ui_out *out,
   CATCH (except, RETURN_MASK_ERROR)
     {
       gdbpy_convert_exception (except);
+      retval = EXT_LANG_BT_ERROR;
     }
   END_CATCH
 
-- 
2.9.4