[orca] Don't assume successful name generation when checking its length

[Joanmarie Diggs <joanied src gnome org>]

commit 8d73eec99ce27d9d37e1c1465d22fa68830a9db7
Author: Joanmarie Diggs <jdiggs igalia com>
Date:   Thu Mar 29 15:51:35 2018 -0400

    Don't assume successful name generation when checking its length

 src/orca/speech_generator.py |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/orca/speech_generator.py b/src/orca/speech_generator.py
index e9d9441..c7583f9 100644
--- a/src/orca/speech_generator.py
+++ b/src/orca/speech_generator.py
@@ -449,7 +449,7 @@ class SpeechGenerator(generator.Generator):
         labels = self._script.utilities.unrelatedLabels(obj, visibleOnly)
         for label in labels:
             name = self._generateName(label, **args)
-            if name[0] and len(name[0]) == 1:
+            if name and len(name[0]) == 1:
                 charname = chnames.getCharacterName(name[0])
                 if charname:
                     name[0] = charname