Log Message:
Explicitly define SHELL to be our SH in the make environment. This prevents
the environment's SHELL to be patched into a dozen or so installed scripts,
instead of a bourne-like shell. Needed after 1.13 of patches/patch-ab (fix
for building on Solaris). Sh scripts don't work well with /bin/tcsh...
Bump revision to recognize whether the fixed one is installed.