trivial select_parent documentation fix

"Search list for X" sounds like you're trying to find X on a list.

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/fs/dcache.c b/fs/dcache.c
index 16521a9..0364af2 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -1141,7 +1141,7 @@
 EXPORT_SYMBOL(have_submounts);
 
 /*
- * Search the dentry child list for the specified parent,
+ * Search the dentry child list of the specified parent,
  * and move any unused dentries to the end of the unused
  * list for prune_dcache(). We descend to the next level
  * whenever the d_subdirs list is non-empty and continue