[PY 3.8] test fixes for file closings, rawstrings

On a linux host (missing some things that may be on the Travis CI
setup), Py3.8a3 now shows 19 fails, 1048 pass, with 84 Warning: messages.

Signed-off-by: Mats Wichmann <mats@linux.com>

1 files changed, 4 insertions, 4 deletions

diff --git a/test/ignore-command.py b/test/ignore-command.py
index 9fd24ab..d5c18a5 100644
--- a/test/ignore-command.py
+++ b/test/ignore-command.py
@@ -40,10 +40,10 @@ test.subdir('build', 'src')
 
 test.write('build.py', r"""
 import sys
-fp = open(sys.argv[1], 'wb')
-for f in sys.argv[2:]:
-    fp.write(open(f, 'rb').read())
-fp.close()
+with open(sys.argv[1], 'wb') as fp:
+    for f in sys.argv[2:]:
+        with open(f, 'rb') as ifp:
+            fp.write(ifp.read())
 sys.exit(1)
 """)