Add missing online help for Ketch server type option in CLI daemon

Change-Id: I19d27bbdbfdb1c7a5a688e41dfcba73a142a1afd
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>

org.eclipse.jgit.pgm/resources/org/eclipse/jgit/pgm/internal/CLIText.properties

@@ -114,6 +114,7 @@ metaVar_file=FILE
 metaVar_filepattern=filepattern
 metaVar_gitDir=GIT_DIR
 metaVar_hostName=HOSTNAME
+metaVar_ketchServerType=SERVERTYPE
 metaVar_lfsStorage=STORAGE
 metaVar_linesOfContext=lines
 metaVar_message=message
@@ -232,6 +233,7 @@ usage_DisplayTheVersionOfJgit=Display the version of jgit
 usage_Gc=Cleanup unnecessary files and optimize the local repository
 usage_Glog=View commit history as a graph
 usage_IndexPack=Build pack index file for an existing packed archive
+usage_ketchServerType=Ketch server type
 usage_LFSDirectory=Directory to store large objects
 usage_LFSPort=Server http port
 usage_LFSRunStore=Store (fs | s3), store lfs objects in file system or Amazon S3

org.eclipse.jgit.pgm/src/org/eclipse/jgit/pgm/Daemon.java

@@ -101,7 +101,7 @@ class Daemon extends TextBuiltin {
 	@Option(name = "--export-all", usage = "usage_exportWithoutGitDaemonExportOk")
 	boolean exportAll;
 
-	@Option(name = "--ketch")
+	@Option(name = "--ketch", metaVar = "metaVar_ketchServerType", usage = "usage_ketchServerType")
 	KetchServerType ketchServerType;
 
 	enum KetchServerType {