modal was not centered correctly

bootstrap.css

@@ -6,7 +6,7 @@
  * http://www.apache.org/licenses/LICENSE-2.0
  *
  * Designed and built with all the love in the world @twitter by @mdo and @fat.
- * Date: Sat Oct  8 00:26:36 PDT 2011
+ * Date: Sat Oct  8 09:21:16 PDT 2011
  */
 /* Reset.less
  * Props to Eric Meyer (meyerweb.com) for his CSS reset file. We're using an adapted version here	that cuts out some of the reset HTML elements we will never need here (i.e., dfn, samp, etc).
@@ -2127,7 +2127,7 @@ button.btn::-moz-focus-inner, input[type=submit].btn::-moz-focus-inner {
   left: 50%;
   z-index: 11000;
   width: 560px;
-  margin: -250px 0 0 -250px;
+  margin: -250px 0 0 -280px;
   background-color: #ffffff;
   border: 1px solid #999;
   border: 1px solid rgba(0, 0, 0, 0.3);

bootstrap.min.css

@@ -317,7 +317,7 @@ button.btn::-moz-focus-inner,input[type=submit].btn::-moz-focus-inner{padding:0;
 .well{background-color:#f5f5f5;margin-bottom:20px;padding:19px;min-height:20px;border:1px solid #eee;border:1px solid rgba(0, 0, 0, 0.05);-webkit-border-radius:4px;-moz-border-radius:4px;border-radius:4px;-webkit-box-shadow:inset 0 1px 1px rgba(0, 0, 0, 0.05);-moz-box-shadow:inset 0 1px 1px rgba(0, 0, 0, 0.05);box-shadow:inset 0 1px 1px rgba(0, 0, 0, 0.05);}.well blockquote{border-color:#ddd;border-color:rgba(0, 0, 0, 0.15);}
 .modal-backdrop{background-color:#000000;position:fixed;top:0;left:0;right:0;bottom:0;z-index:10000;}.modal-backdrop.fade{opacity:0;}
 .modal-backdrop,.modal-backdrop.fade.in{filter:alpha(opacity=80);-khtml-opacity:0.8;-moz-opacity:0.8;opacity:0.8;}
-.modal{position:fixed;top:50%;left:50%;z-index:11000;width:560px;margin:-250px 0 0 -250px;background-color:#ffffff;border:1px solid #999;border:1px solid rgba(0, 0, 0, 0.3);*border:1px solid #999;-webkit-border-radius:6px;-moz-border-radius:6px;border-radius:6px;-webkit-box-shadow:0 3px 7px rgba(0, 0, 0, 0.3);-moz-box-shadow:0 3px 7px rgba(0, 0, 0, 0.3);box-shadow:0 3px 7px rgba(0, 0, 0, 0.3);-webkit-background-clip:padding-box;-moz-background-clip:padding-box;background-clip:padding-box;}.modal .close{margin-top:7px;}
+.modal{position:fixed;top:50%;left:50%;z-index:11000;width:560px;margin:-250px 0 0 -280px;background-color:#ffffff;border:1px solid #999;border:1px solid rgba(0, 0, 0, 0.3);*border:1px solid #999;-webkit-border-radius:6px;-moz-border-radius:6px;border-radius:6px;-webkit-box-shadow:0 3px 7px rgba(0, 0, 0, 0.3);-moz-box-shadow:0 3px 7px rgba(0, 0, 0, 0.3);box-shadow:0 3px 7px rgba(0, 0, 0, 0.3);-webkit-background-clip:padding-box;-moz-background-clip:padding-box;background-clip:padding-box;}.modal .close{margin-top:7px;}
 .modal.fade{-webkit-transition:opacity .3s linear, top .3s ease-out;-moz-transition:opacity .3s linear, top .3s ease-out;-ms-transition:opacity .3s linear, top .3s ease-out;-o-transition:opacity .3s linear, top .3s ease-out;transition:opacity .3s linear, top .3s ease-out;top:-25%;}
 .modal.fade.in{top:50%;}
 .modal-header{border-bottom:1px solid #eee;padding:5px 15px;}

lib/patterns.less

@@ -800,7 +800,8 @@ input[type=submit].btn {
   &.fade { opacity: 0; }
 }
 
-.modal-backdrop, .modal-backdrop.fade.in {
+.modal-backdrop,
+.modal-backdrop.fade.in {
   .opacity(80);
 }
 
@@ -810,7 +811,7 @@ input[type=submit].btn {
   left: 50%;
   z-index: 11000;
   width: 560px;
-  margin: -250px 0 0 -250px;
+  margin: -250px 0 0 -280px;
   background-color: @white;
   border: 1px solid #999;
   border: 1px solid rgba(0,0,0,.3);