HBASE-27942 Update the description about hbase.hstore.compactionThres…

…hold (apache#5302)

Signed-off-by: Duo Zhang <zhangduo@apache.org>
(cherry picked from commit d8447d9)
(cherry picked from commit 46368c9)
Change-Id: I45681d7db81e04e9f43cb7474ac3e7a20dc9aae7

hbase-common/src/main/resources/hbase-default.xml

@@ -784,7 +784,7 @@ possible configurations would overwhelm and obscure the important.
   <property>
     <name>hbase.hstore.compactionThreshold</name>
     <value>3</value>
-    <description> If more than this number of StoreFiles exist in any one Store
+    <description> If more than or equal to this number of StoreFiles exist in any one Store
       (one StoreFile is written per flush of MemStore), a compaction is run to rewrite all
       StoreFiles into a single StoreFile. Larger values delay compaction, but when compaction does
       occur, it takes longer to complete.</description>