[distcc] The masquerade continues with 1.2.2

[Wayne Davison]

Since the 1.2.1 patch doesn't apply cleanly to 1.2.2, here's a patch
for 1.2.2:

    http://www.blorf.net/distcc-1.2.2-masquerade.patch

I also improved the comments on the new dcc_abspath() function and
tweaked a couple inconsequential things in that function.

Don't forget to run autoconf and autoheader after applying the patch.

..wayne..