Help output printed twice

[eukaryote]

I'm seeing help/usage info being printed twice. I tried cloning from master and checking one of the examples, and I see the same output there.

Platform is Linux (Ubuntu 16).

Steps to reproduce:

» uname -a
Linux myhost 4.4.0-34-generic #53-Ubuntu SMP Wed Jul 27 16:06:39 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
/tmp » rustc -V
rustc 1.11.0 (9b21dcd6a 2016-08-15)
/tmp » cargo -V
cargo 0.12.0-nightly (6b98d1f 2016-07-04)
/tmp » git clone https://github.com/kbknapp/clap-rs.git && cd clap-rs
Cloning into 'clap-rs'...
/tmp/clap-rs(master) » cargo build --example 01a_quick_example
    Updating registry `https://github.com/rust-lang/crates.io-index`
   Compiling winapi v0.2.8
   Compiling unicode-width v0.1.3
   Compiling bitflags v0.7.0
   Compiling utf8-ranges v0.1.3
   Compiling ansi_term v0.8.0
   Compiling strsim v0.4.1
   Compiling winapi-build v0.1.1
   Compiling libc v0.2.15
   Compiling vec_map v0.6.0
   Compiling kernel32-sys v0.2.2
   Compiling regex-syntax v0.3.4
   Compiling memchr v0.1.11
   Compiling thread-id v2.0.0
   Compiling term_size v0.1.0
   Compiling thread_local v0.2.6
   Compiling clap v2.10.1 (file:///tmp/clap-rs)
   Compiling aho-corasick v0.5.2
   Compiling regex v0.1.73
/tmp/clap-rs(master) » ./target/debug/examples/01a_quick_example -h
MyApp 1.0
Kevin K. <[email protected]>
Does awesome things

USAGE:
    01a_quick_example [FLAGS] [OPTIONS] <output> [SUBCOMMAND]

FLAGS:
    -d               Turn debugging information on
    -h, --help       Prints help information
    -V, --version    Prints version information

OPTIONS:
    -c, --config <FILE>    Sets a custom config file

ARGS:
    <output>    Sets an optional output file

SUBCOMMANDS:
    help    Prints this message or the help of the given subcommand(s)
    test    does testing thingsMyApp 1.0
Kevin K. <[email protected]>
Does awesome things

USAGE:
    01a_quick_example [FLAGS] [OPTIONS] <output> [SUBCOMMAND]

FLAGS:
    -d               Turn debugging information on
    -h, --help       Prints help information
    -V, --version    Prints version information

OPTIONS:
    -c, --config <FILE>    Sets a custom config file

ARGS:
    <output>    Sets an optional output file

SUBCOMMANDS:
    help    Prints this message or the help of the given subcommand(s)
    test    does testing things

[kbknapp]

That's a regression! Should be fixed momentarily! Thanks!

[kbknapp]

This is fixed in #624 thanks again for filing this! 👍