lib: radix-tree: delete duplicated words

Drop the repeated word "be".

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Link: https://lkml.kernel.org/r/20200823040508.26086-1-rdunlap@infradead.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

lib/radix-tree.c

@@ -325,7 +325,7 @@ static __must_check int __radix_tree_preload(gfp_t gfp_mask, unsigned nr)
 	int ret = -ENOMEM;
 
 	/*
-	 * Nodes preloaded by one cgroup can be be used by another cgroup, so
+	 * Nodes preloaded by one cgroup can be used by another cgroup, so
 	 * they should never be accounted to any particular memory cgroup.
 	 */
 	gfp_mask &= ~__GFP_ACCOUNT;