Merge branch 'nd/fix-perf-parameters-in-tests'

Allow GIT_PERF_* environment variables to be passed through the
test framework.

* nd/fix-perf-parameters-in-tests:
  test-lib.sh: unfilter GIT_PERF_*

t/test-lib.sh

@@ -86,7 +86,7 @@ unset VISUAL EMAIL LANGUAGE COLUMNS $("$PERL_PATH" -e '
 		PROVE
 		VALGRIND
 		UNZIP
-		PERF_AGGREGATING_LATER
+		PERF_
 	));
 	my @vars = grep(/^GIT_/ && !/^GIT_($ok)/o, @env);
 	print join("\n", @vars);