Re: doc: Mention two more shell portability problems

Zack Weinberg wrote:
> I verified both of these behaviors and merged the patch, with two
> slight changes to the text:
> 
>  - it is specifically Solaris 10 /bin/sh that executes redirected
> compound commands in a subshell; ksh (aka /usr/xpg4/bin/sh) doesn't.
>  - the latest version of dash also doesn't support file descriptors
> larger than 9, so I took out the version number

Thanks, Zack!