[meld] Revert "diffmap: Call the wrong function, for GTK+'s insanity"

[Kai Willadsen <kaiw src gnome org>]

commit 00b49a77090b71fc6424ec6433a4c00a0b2da546
Author: Kai Willadsen <kai willadsen gmail com>
Date:   Fri Apr 7 06:18:11 2017 +1000

    Revert "diffmap: Call the wrong function, for GTK+'s insanity"
    
    This reverts commit ef3ba1b87d2cb775901ac9780d464b32e5b3942c.
    
    The commit was an inadvertent requirement bump to GTK+ 3.22, and doesn't
    fix the problem properly anyway.

 meld/diffmap.py |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/meld/diffmap.py b/meld/diffmap.py
index 3520251..7548cdf 100644
--- a/meld/diffmap.py
+++ b/meld/diffmap.py
@@ -108,7 +108,7 @@ class DiffMap(Gtk.DrawingArea):
         self._scroll_height = allocation.height
         self._width = max(allocation.width, 10)
         self._cached_map = None
-        self.queue_allocate()
+        self.queue_resize()
 
     def do_draw(self, context):
         if not self._setup: