pgsql: Back-patch replacement of README.CVS with README.git.

Back-patch replacement of README.CVS with README.git.

In older branches, also git-ify the "make distdir" rule.

Branch
------
REL8_4_STABLE

Details
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http://git.postgresql.org/gitweb?p=postgresql.git;a=commitdiff;h=c6299515c5edbc46b461205148d71873691b4a80

Modified Files
--------------
GNUmakefile.in | 2 +-
README.CVS | 14 --------------
README.git | 14 ++++++++++++++
3 files changed, 15 insertions(+), 15 deletions(-)