exec: Fix spelling of search_binary_handler in a comment

Link: https://lkml.kernel.org/r/87h7wq6zc1.fsf_-_@x220.int.ebiederm.orgReviewed-by: NKees Cook <keescook@chromium.org>
Signed-off-by: N"Eric W. Biederman" <ebiederm@xmission.com>

fs/exec.c

@@ -1296,7 +1296,7 @@ void __set_task_comm(struct task_struct *tsk, const char *buf, bool exec)
  * Calling this is the point of no return. None of the failures will be
  * seen by userspace since either the process is already taking a fatal
  * signal (via de_thread() or coredump), or will have SEGV raised
- * (after exec_mmap()) by search_binary_handlers (see below).
+ * (after exec_mmap()) by search_binary_handler (see below).
  */
 int begin_new_exec(struct linux_binprm * bprm)
 {