sched: Spelling fix

Signed-off-by: Andrei Epure <epure.andrei@gmail.com>
Cc: trivial@kernel.org
Cc: peterz@infradead.org
Link: http://lkml.kernel.org/r/1362996200-2674-1-git-send-email-epure.andrei@gmail.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 9f23112..22bd9e6 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -652,7 +652,7 @@
 }
 
 /*
- * We calculate the vruntime slice of a to be inserted task
+ * We calculate the vruntime slice of a to-be-inserted task.
  *
  * vs = s/w
  */