update comment in default bootstrap's variables.less

diff --git a/default/variables.less b/default/variables.less
index a53f809..368fafa 100755 (executable)
--- a/default/variables.less
+++ b/default/variables.less
@@ -1,4 +1,4 @@
-// Swatch 2.2.1
+// Bootstrap 2.2.2
 // Variables
 // --------------------------------------------------