HADOOP-12359. hadoop fs -getmerge doc is wrong. Contributed by Jagadesh Kiran N.

hadoop-common-project/hadoop-common/CHANGES.txt

@@ -1120,6 +1120,9 @@ Release 2.7.2 - UNRELEASED
     HADOOP-12061. Incorrect command in single cluster setup document.
     (Kengo Seki via aajisaka)
 
+    HADOOP-12359. hadoop fs -getmerge doc is wrong.
+    (Jagadesh Kiran N via aajisaka)
+
 Release 2.7.1 - 2015-07-06 
 
   INCOMPATIBLE CHANGES

hadoop-common-project/hadoop-common/src/site/markdown/FileSystemShell.md

@@ -368,9 +368,18 @@ Returns 0 on success and non-zero on error.
 getmerge
 --------
 
-Usage: `hadoop fs -getmerge <src> <localdst> [addnl]`
+Usage: `hadoop fs -getmerge [-nl] <src> <localdst>`
 
-Takes a source directory and a destination file as input and concatenates files in src into the destination local file. Optionally addnl can be set to enable adding a newline character at the end of each file.
+Takes a source directory and a destination file as input and concatenates files in src into the destination local file. Optionally -nl can be set to enable adding a newline character (LF) at the end of each file.
+
+Examples:
+
+* `hadoop fs -getmerge -nl  /src  /opt/output.txt`
+* `hadoop fs -getmerge -nl  /src/file1.txt /src/file2.txt  /output.txt`
+
+Exit Code:
+
+Returns 0 on success and non-zero on error.
 
 help
 ----