[pango] Fix bug in previous commit

[Behdad Esfahbod <behdad src gnome org>]

commit c7bca3b1431e50e8f01e4d4f952b38dee86ec0fd
Author: Behdad Esfahbod <behdad behdad org>
Date:   Fri Aug 21 15:20:02 2015 +0100

    Fix bug in previous commit

 pango/pango-layout.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/pango/pango-layout.c b/pango/pango-layout.c
index 3f3f98f..a9241c1 100644
--- a/pango/pango-layout.c
+++ b/pango/pango-layout.c
@@ -5242,7 +5242,7 @@ justify_clusters (PangoLayoutLine *line,
                  int leftmost, rightmost;
                  int adjustment, space_left, space_right;
 
-                 adjustment = ((gaps_so_far * total_remaining_width) - total_gaps/2) / total_gaps - 
added_so_far;
+                 adjustment = ((gaps_so_far * total_remaining_width) - total_remaining_width/2) / total_gaps 
- added_so_far;
                  if (is_hinted)
                    adjustment = PANGO_UNITS_ROUND (adjustment);
                  /* distribute to before/after */