build errors on Solaris with Sun Workshop 5.0 v6r1

[Patrick Stach]

Hi,

        I noticed that Sunpro cc detects a syntax error at the end of static
void internal_free(....) of lib/malloc/malloc.c in the bash-2.05b source
tree.  It requires an operation to be after the free_return: label and when
using the default ./configure generated options the preprocessor trims out
all the #ifdef'ed blocks leaving nothing there.  By simply adding a return;
before the end of the function the problem was solved.

        I figured since it was a simple enough fix that a patch would not be
needed.

Thanks,
-Patrick Stach