bug fix in time.lua

a crazy typo

frontend/ui/gesturedetector.lua

@@ -185,9 +185,8 @@ function GestureDetector:tapState(ev)
 			}
 		Input:setTimeOut(function()
 			DEBUG("in tap timer", self.last_tap ~= nil)
-			-- double tap will set last_tap to nil
-			-- so if it is not, then user must only
-			-- tapped once
+			-- double tap will set last_tap to nil so if it is not, then
+			-- user must only tapped once
 			if self.last_tap ~= nil then
 				self.last_tap = nil
 				-- we are using closure here

frontend/ui/time.lua

@@ -81,7 +81,7 @@ function TimeVal:__add(time_b)
 	sum.sec = self.sec + time_b.sec
 	sum.usec = self.usec + time_b.usec
 	if sum.usec > 1000000 then
-		sum.usec = sum.sec - 1000000
+		sum.usec = sum.usec - 1000000
 		sum.sec = sum.sec + 1
 	end