[gimp-help-2] Inverted the default label, it was missing but reversed the default of last commit

[Marco Ciampa <marcoc src gnome org>]

commit 31a59f3fb137357631f8317fa411c63e237dfc8d
Author: Marco Ciampa <ciampix libero it>
Date:   Sat Jun 10 15:37:26 2017 +0200

    Inverted the default label, it was missing but reversed the default of last commit

 src/toolbox/transform/unified-transform.xml |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/src/toolbox/transform/unified-transform.xml b/src/toolbox/transform/unified-transform.xml
index 0e0cebd..c766b30 100644
--- a/src/toolbox/transform/unified-transform.xml
+++ b/src/toolbox/transform/unified-transform.xml
@@ -338,9 +338,9 @@
           </para>
           <para>
             <guilabel>Shear</guilabel>: 
-            When this option is unchecked, the opposite edge is fixed 
+            When this option is unchecked (default), the opposite edge is fixed 
             and the pivot moves with shearing. When the option 
-            is checked (default), shearing is performed around a fixed pivot and the 
+            is checked, shearing is performed around a fixed pivot and the 
             opposite side is sheared by the same amount.           
           </para>
           <para>