Fix buglet in frontend completion.

IPython/frontend/linefrontendbase.py

@@ -216,6 +216,8 b' class LineFrontEndBase(FrontEndBase):'
         new_line, completions = self.complete(line)
         if len(completions)>1:
             self.write_completion(completions, new_line=new_line)
+        if not line == new_line:
+            self.input_buffer = new_line
         if self.debug:
             print >>sys.__stdout__, 'line', line
             print >>sys.__stdout__, 'new_line', new_line

IPython/testing/plugin/Makefile

@@ -1,6 +1,5 b''
 # Set this prefix to where you want to install the plugin
-PREFIX=~/usr/local
-PREFIX=~/tmp/local
+PREFIX=/usr/local
 
 NOSE0=nosetests -vs --with-doctest --doctest-tests --detailed-errors
 NOSE=nosetests -vvs --with-ipdoctest --doctest-tests --doctest-extension=txt \