Remove all trailing whitespace

sed 's/[ \t]*$//' -i **/*.d

source/vibe/internal/async.d

@@ -61,7 +61,7 @@ struct Waitable(CB, alias wait, alias cancel, on_result...)
 
 	bool cancelled;
 	auto waitCallback(Callback cb) nothrow { return wait(cb); }
-	
+
 	static if (is(ReturnType!waitCallback == void))
 		void cancelCallback(Callback cb) nothrow { cancel(cb); }
 	else

source/vibe/internal/interfaceproxy.d

@@ -163,7 +163,7 @@ struct InterfaceProxy(I) if (is(I == interface)) {
 			}
 			return ret;
 		}
-		
+
 		mixin(impl());
 	}
 

source/vibe/internal/traits.d

@@ -440,7 +440,7 @@ template checkInterfaceConformance(T, I) {
 		}
 		alias checkMemberConformance = impl!0;
 	}
-	
+
 	template impl(size_t i) {
 		static if (i < Members.length) {
 			static if (__traits(compiles, __traits(getMember, I, Members[i])))