[gedit] Fix undefined variable error

[Paolo Borelli <pborelli src gnome org>]

commit c7d29da69debe249d31001465557da49e2e5305e
Author: Paolo Borelli <pborelli gnome org>
Date:   Sat Oct 20 12:28:15 2012 +0200

    Fix undefined variable error
    
    Not sure how this worked until now... probably previous version of python were more
    accomodating.

 plugins/externaltools/tools/capture.py |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/plugins/externaltools/tools/capture.py b/plugins/externaltools/tools/capture.py
index 1a31f27..64b50a2 100644
--- a/plugins/externaltools/tools/capture.py
+++ b/plugins/externaltools/tools/capture.py
@@ -151,7 +151,7 @@ class Capture(GObject.Object):
 
             return False
 
-    def process_read_buffer(self):
+    def process_read_buffer(self, source):
         if self.read_buffer:
             if source == self.pipe.stdout:
                 self.emit('stdout-line', self.read_buffer)
@@ -188,13 +188,13 @@ class Capture(GObject.Object):
                         self.emit('stderr-line', line)
             else:
                 source.close()
-                self.process_read_buffer()
+                self.process_read_buffer(source)
                 self.pipe = None
 
                 return False
 
         if condition & ~(GObject.IO_IN | GObject.IO_PRI):
-            self.process_read_buffer()
+            self.process_read_buffer(source)
             self.pipe = None
 
             return False