Patch to allow us to specify an alternate indent binary when running tests.

This patch should be sent upstream.

--- indent-2.2.9/regression/TEST.orig 2015-08-03 07:55:36.236058899 -0700

+++ indent-2.2.9/regression/TEST 2015-08-03 07:56:32.264810064 -0700

@@ -3,7 +3,7 @@

# Compare the output of ../src/indent to correct output

# generated by earlier versions

-INDENT=../src/indent

+INDENT="${INDENT_BIN:-../src/indent}"

# First, make sure the executable exists