Use communicate() instead of wait() with Popen.

No good reason not to do this, and it prevents a problem where the test
suite will open too many file descriptors with PyPy.

1 files changed, 1 insertions, 1 deletions

diff --git a/kconfigtest.py b/kconfigtest.py
index 0c994fc..f3154c0 100644
--- a/kconfigtest.py
+++ b/kconfigtest.py
@@ -445,7 +445,7 @@ def shell(cmd):
     subprocess.Popen(cmd,
                      shell = True,
                      stdout = subprocess.PIPE,
-                     stderr = subprocess.PIPE).wait()
+                     stderr = subprocess.PIPE).communicate()
 
 def rm_configs():
     """Delete any old ".config" (generated by the C implementation) and