make: fixes to test script

Unset MAKEFLAGS in the test script so it works if it's run using
a version of make that has options which pdpmake doesn't understand.

Return $FAILCOUNT as the exit status so the number of failures can
be reported.

1 files changed, 3 insertions, 0 deletions

diff --git a/testsuite/make.tests b/testsuite/make.tests
index 7749bed52..2d286d5b8 100755
--- a/testsuite/make.tests
+++ b/testsuite/make.tests
@@ -1,6 +1,7 @@
 #!/bin/sh
 
 . ./testing.sh
+unset MAKEFLAGS
 
 # testing "test name" "command" "expected result" "file input" "stdin"
 
@@ -529,3 +530,5 @@ file1:
         @touch file1
 '
 cd .. || exit 1; rm -rf make.tempdir 2>/dev/null
+
+exit $FAILCOUNT