[gimp] tools: in performance-log-viewer.py, right-align backtrace frame number column

[Ell <ell src gnome org>]

commit 51d99349423aad8cba9de6967e0ab972297f42f0
Author: Ell <ell_se yahoo com>
Date:   Sun Sep 23 01:37:27 2018 -0400

    tools: in performance-log-viewer.py, right-align backtrace frame number column

 tools/performance-log-viewer.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/tools/performance-log-viewer.py b/tools/performance-log-viewer.py
index 3e6fd408ce..51483c0619 100755
--- a/tools/performance-log-viewer.py
+++ b/tools/performance-log-viewer.py
@@ -1640,7 +1640,7 @@ class BacktraceViewer (Gtk.Box):
         tree.append_column (col)
         col.set_resizable (True)
 
-        cell = Gtk.CellRendererText ()
+        cell = Gtk.CellRendererText (xalign = 1)
         col.pack_start (cell, False)
         col.add_attribute (cell, "text", self.FrameStore.ID)