pid: fix typo in function description

finds is misspelt as finr. No functional change.
Signed-off-by: Sisir Koppaka <sisir.koppaka@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

include/linux/pid.h

@@ -105,7 +105,7 @@ extern struct pid_namespace init_pid_ns;
  * or rcu_read_lock() held.
  *
  * find_pid_ns() finds the pid in the namespace specified
- * find_vpid() finr the pid by its virtual id, i.e. in the current namespace
+ * find_vpid() finds the pid by its virtual id, i.e. in the current namespace
  *
  * see also find_task_by_vpid() set in include/linux/sched.h
  */