search: `post` and `query` should be Unicode strings

They're being formatted into the Unicode `filterstr`.  Being explicit
here should make the transition to Python 3 less annoying.

diff --git a/mutt-ldap.py b/mutt-ldap.py
index 4117177a6aeb49aaad53cfda255d7e76e1bc4743..080bff045f7928cc3cf81467d2b4afd552855bf1 100755 (executable)
--- a/mutt-ldap.py
+++ b/mutt-ldap.py
@@ -88,9 +88,9 @@ def connect():
     return connection
 
 def search(query, connection):
-    post = ''
+    post = u''
     if query:
-        post = '*'
+        post = u'*'
     filterstr = u'(|{0})'.format(
         u' '.join([u'({0}=*{1}{2})'.format(field, query, post)
                    for field in CONFIG.get('query', 'search_fields').split()]))