test-flagprocessor: remove unnecessary greps
The "2>&1 | egrep ..." code is used for removing uninteresting parts from
tracebacks. Now the test does not dump tracebacks, they can be removed.
#!/usr/bin/env python
from __future__ import absolute_import, print_function
import errno
import os
import sys
for f in sys.argv[1:]:
try:
print(f, '->', os.readlink(f))
except OSError as err:
if err.errno != errno.EINVAL:
raise
print(f, '->', f, 'not a symlink')
sys.exit(0)