Just remove compiler warnings.

Source/tasks.c

@@ -1977,13 +1977,13 @@ tskTCB *pxNewTCB;
 
 					if( ulStatsAsPercentage > 0UL )
 					{
-						sprintf( pcStatsString, ( portCHAR * ) "%s\t\t%u\t\t%u%%\r\n", pxNextTCB->pcTaskName, pxNextTCB->ulRunTimeCounter, ulStatsAsPercentage );
+						sprintf( pcStatsString, ( portCHAR * ) "%s\t\t%u\t\t%u%%\r\n", pxNextTCB->pcTaskName, ( unsigned int ) pxNextTCB->ulRunTimeCounter, ( unsigned int ) ulStatsAsPercentage );
 					}
 					else
 					{
 						/* If the percentage is zero here then the task has
 						consumed less than 1% of the total run time. */
-						sprintf( pcStatsString, ( portCHAR * ) "%s\t\t%u\t\t<1%%\r\n", pxNextTCB->pcTaskName, pxNextTCB->ulRunTimeCounter );
+						sprintf( pcStatsString, ( portCHAR * ) "%s\t\t%u\t\t<1%%\r\n", pxNextTCB->pcTaskName, ( unsigned int ) pxNextTCB->ulRunTimeCounter );
 					}
 				}