[ccache] [PATCH] Use bash for test.sh.

[Paul Smith]

On Mon, 2012-11-12 at 13:11 -0500, Eitan Adler wrote:
> #!/bin/sh  which is mandated to exist by POSIX

Actually, unless there's been a change, POSIX doesn't mandate that the
POSIX shell appear as /bin/sh.

Unfortunately, this means that systems are free to provide definitively
non-POSIX /bin/sh and still be allowed to paint themselves with the
veneer of compliance (yes I'm looking at you Solaris!!), since there is
a POSIX shell somewhere (else) on the system.