[HBASE-17936] Refine sum endpoint example in ref guide

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 2.0.0
• Component/s: documentation
• Hadoop Flags: Reviewed
• Assignee: Xiang Li
• Reporter: Xiang Li
• Created: 18/Apr/17 11:45
• Updated: 01/Aug/18 06:21
• Resolved: 18/Apr/17 16:34

Description

Refine chapter 90.2, the example java code of sum endpoint of http://hbase.apache.org/book.html#cp_example

• error
• typo
• genericity
• indent