Add missing backtick in comment

diff --git a/less/mixins.less b/less/mixins.less
index e5643721d7f2239a4bd852d205b33bb6096cda29..440dcd074099e08ba1f3fd9b766f1ab727867dab 100644 (file)
--- a/less/mixins.less
+++ b/less/mixins.less
@@ -165,7 +165,7 @@
 
 // Backface visibility
 // Prevent browsers from flickering when using CSS 3D transforms.
-// Default value is `visible`, but can be changed to `hidden
+// Default value is `visible`, but can be changed to `hidden`
 // See git pull https://github.com/dannykeane/bootstrap.git backface-visibility for examples
 .backface-visibility(@visibility){
        -webkit-backface-visibility: @visibility;