Fix: typo for ledger-metadata param: restorefromfile (apache#3823)

Author: rdhabalia

bookkeeper-server/src/main/java/org/apache/bookkeeper/bookie/BookieShell.java

@@ -815,7 +815,7 @@ public int runCmd(CommandLine cmdLine) throws Exception {
                 System.err.println("Must specify a ledger id");
                 return -1;
             }
-            if (cmdLine.hasOption("dumptofile") && cmdLine.hasOption("restorefromefile")) {
+            if (cmdLine.hasOption("dumptofile") && cmdLine.hasOption("restorefromfile")) {
                 System.err.println("Only one of --dumptofile and --restorefromfile can be specified");
                 return -2;
             }

bookkeeper-server/src/main/java/org/apache/bookkeeper/tools/cli/commands/client/LedgerMetaDataCommand.java

@@ -89,7 +89,7 @@ public static class LedgerMetadataFlag extends CliFlags {
         @Parameter(names = { "-d", "--dumptofile" }, description = "Dump metadata for ledger, to a file")
         private String dumpToFile = DEFAULT;
 
-        @Parameter(names = { "-r", "--restorefromefile" }, description = "Restore metadata for ledger, from a file")
+        @Parameter(names = { "-r", "--restorefromfile" }, description = "Restore metadata for ledger, from a file")
         private String restoreFromFile = DEFAULT;
 
         @Parameter(names =  {"-lf", "--ledgeridformatter"}, description = "Set ledger id formatter")