Add support for bash-static

[opensource-assist]

I'm unable to compile scripts with the #!/bin/bash-static shebang. bash-static is simply a static version of Bash.

[HafizZiq]

U can use export CFLAGS="-static" ./shc ..

[liberize]

I wrote an alternate tool, use pipes and support shebang.

https://github.com/liberize/sshc