HADOOP-16523. Minor spell mistake in comment : Line number 101 (#388)

Author: sandeepksaini

hadoop-hdfs-project/hadoop-hdfs/src/main/proto/fsimage.proto

@@ -98,7 +98,7 @@ message INodeSection {
      * format. The bits can be divided in four segments:
      * [0:2) || [2:26) || [26:27) || [27:29) || [29:32)
      *
-     * [0:2) -- reserved for futute uses.
+     * [0:2) -- reserved for future uses.
      * [2:26) -- the name of the entry, which is an ID that points to a
      * string in the StringTableSection.
      * [26:27) -- the scope of the entry (AclEntryScopeProto)
@@ -350,4 +350,4 @@ message CacheManagerSection {
 
 message ErasureCodingSection {
   repeated ErasureCodingPolicyProto policies = 1;
-}
+}