github.styl: Whitespace fixes

sites/github.styl

@@ -274,7 +274,7 @@
         text-shadow none i
 
 .commit-desc pre
-    background-color transparent i        
+    background-color transparent i
     color()
 
 // ** completeness-indicator
@@ -367,7 +367,7 @@
 .entry-title
     a
         color blue i
-    
+
 .header
     background-color color-background-highlight-extra-less-less
     border-bottom-color color-background-highlight-extra i
@@ -535,11 +535,11 @@ a.label
         background-image linear-gradient(color-background, transparent) i
 
     &:after
-        background-image linear-gradient(transparent, color-background) i    
+        background-image linear-gradient(transparent, color-background) i
 
 .sunken-menu-item
     border-color color-background
-    
+
     &.selected
         background-color()
         border-color color-background-highlight-extra-less