[orca/gnome-3-20] Only treat cells with non-whitespace chars as real active descendants

[Joanmarie Diggs <joanied src gnome org>]

commit 6717f802f9fe16009e47a617ff77ba32613751b0
Author: Joanmarie Diggs <jdiggs igalia com>
Date:   Fri Apr 22 15:59:52 2016 -0400

    Only treat cells with non-whitespace chars as real active descendants

 src/orca/script_utilities.py |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/orca/script_utilities.py b/src/orca/script_utilities.py
index bd39af5..b93808f 100644
--- a/src/orca/script_utilities.py
+++ b/src/orca/script_utilities.py
@@ -1657,7 +1657,7 @@ class Utilities:
                     except NotImplementedError:
                         continue
                     else:
-                        if text.getText(0, text.characterCount):
+                        if text.getText(0, -1).strip():
                             activeDescendant = child
 
         self._script.generatorCache[self.REAL_ACTIVE_DESCENDANT][obj] = \