reachableroots: silence warning of implicit integer narrowing issued by clang
Tested with CFLAGS=-Wshorten-64-to-32 CC=clang which is the default of
Mac OS X.
Because a valid revnum shouldn't exceed INT_MAX, we don't need long width for
large tovisit array.
#!/usr/bin/env python
import errno, os, 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, 'not a symlink'
sys.exit(0)