Description of problem:
Didnt specify the destdir

Version-Release number of selected component:
yum-utils-1.1.31-12.fc20

Additional info:
cmdline:        /usr/bin/python /usr/bin/yumdownloader --destdir= nginx --source
dso_list:       python-libs-2.7.3-35.fc20.i686
executable:     /usr/bin/yumdownloader
kernel:         3.9.0-0.rc4.git0.1.fc20.i686.PAE
uid:            1000
ureports_counter: 1

Truncated backtrace:
os.py:157:makedirs:OSError: [Errno 2] No such file or directory: ''

Traceback (most recent call last):
  File "/usr/bin/yumdownloader", line 273, in <module>
    util = YumDownloader()
  File "/usr/bin/yumdownloader", line 73, in __init__
    self.main()
  File "/usr/bin/yumdownloader", line 98, in main
    self.exit_code = self.downloadPackages(opts)
  File "/usr/bin/yumdownloader", line 202, in downloadPackages
    os.makedirs(opts.destdir)
  File "/usr/lib/python2.7/os.py", line 157, in makedirs
    mkdir(name, mode)
OSError: [Errno 2] No such file or directory: ''

Local variables in innermost frame:
tail: ''
head: ''
name: ''
mode: 511