Use check_call so that stdout/stderr get printed in Jenkins

Author: Kevin D Smith

cicd/tar2conda.py

@@ -299,7 +299,7 @@ def main(url, args):
                     shutil.copy(ext, os.path.join('swat', 'lib', platform, ext))
 
                 print_err('>' + ' '.join(cmd))
-                subprocess.check_output(cmd)
+                subprocess.check_call(cmd)
 
                 for ext in glob.glob(os.path.join(tmpext, extbase + '.*')):
                     print_err('> remove %s' % ext)