[d-feet] ExecuteMethodDialog: Pretty-print multiple results

[Will Thompson <wjt src gnome org>]

commit 3d3f0ec0ce84d0caeeba6adbbee873e91f9be211
Author: Simon McVittie <smcv collabora com>
Date:   Fri Jun 30 16:17:39 2017 +0100

    ExecuteMethodDialog: Pretty-print multiple results
    
    If a D-Bus method returns multiple results, d-feet previously only
    pretty-printed the first. Print them one per line, so a method with
    return signature 'isa{sv}' might end up showing:
    
        123,
        "hello, world!",
        {}
    
    Signed-off-by: Simon McVittie <smcv collabora com>
    
    https://bugzilla.gnome.org/show_bug.cgi?id=784387

 src/dfeet/executemethoddialog.py |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/src/dfeet/executemethoddialog.py b/src/dfeet/executemethoddialog.py
index 31b274e..92dc94d 100644
--- a/src/dfeet/executemethoddialog.py
+++ b/src/dfeet/executemethoddialog.py
@@ -108,7 +108,8 @@ class ExecuteMethodDialog:
             # output result
             if result:
                 self.source_textview.get_buffer().set_text(str(result))
-                self.prettyprint_textview.get_buffer().set_text(pformat(result.unpack()[0]))
+                lines = [pformat(x) for x in result.unpack()]
+                self.prettyprint_textview.get_buffer().set_text(',\n'.join(lines))
             else:
                 self.prettyprint_textview.get_buffer().set_text(
                     'This method did not return anything')