[9] RFR 8173158: [AOT] fix typo in jaotc --help output

[Vladimir Kozlov]

http://cr.openjdk.java.net/~kvn/8173158/webrev/
https://bugs.openjdk.java.net/browse/JDK-8173158

Small cleanup of jaotc --help output. Fix typo, reorder printing order.

Changed description of list values similar to javac flags. But I am not 
sure about this - may be is better to have comment following flags that 
"List values use : as separator". What do you think?

Rename following options but keep previous name as alias (both names are 
accepted):

--classname : --class-name
--directory : --class-directory
--threads   : --compile-threads

After changes 'jaotc --help' output:

Usage: jaotc <options> | <list...>

   list    A list of class names, modules, jar files or directories which
           contains class files.

where options include:
   --output <file>            Output file name
   --class-name <class names> A : separated list of classes to compile
   --class-directory <dirs>   A : separated list of directories where to 
search for class files to compile
   --jar <jarfiles>           A : separated list of jar files to compile
   --module <modules>         A : separated list of modules to compile
   --search-path <dirs>       A : separated list of directories where to 
search for jar files and modules
   --compile-commands <file>  Name of file with compile commands
   --compile-for-tiered       Generate profiling code for tiered compilation
   --compile-with-assertions  Compile with java assertions
   --compile-threads <number> Number of compilation threads to be used
   --ignore-errors            Ignores all exceptions thrown during class 
loading
   --exit-on-error            Exit on compilation errors
   --info                     Print information during compilation
   --verbose                  Print verbose information
   --debug                    Print debug information
   --help                     Print this usage message
   --version                  Version information
   -J<flag>                   Pass <flag> directly to the runtime system

Thanks,
Vladimir