RF: refactor, rename nifti diagnostic script

Script didn't have any usage, help, etc.  Stolen from nib-ls.  Renamed
to nib-nifti-dx to fit with our new naming scheme.

Author: matthew-brett

bin/nib-nifti-dx

@@ -0,0 +1,39 @@
+#!/usr/bin/env python
+# emacs: -*- mode: python-mode; py-indent-offset: 4; indent-tabs-mode: nil -*-
+# vi: set ft=python sts=4 ts=4 sw=4 et:
+### ### ### ### ### ### ### ### ### ### ### ### ### ### ### ### ### ### ### ##
+#
+#   See COPYING file distributed along with the NiBabel package for the
+#   copyright and license terms.
+#
+### ### ### ### ### ### ### ### ### ### ### ### ### ### ### ### ### ### ### ##
+''' Print nifti diagnostics for header files '''
+
+import sys
+
+from optparse import OptionParser
+
+import nibabel as nib
+
+
+def main():
+    """ Go go team """
+    parser = OptionParser(
+        usage="%s [FILE ...]\n\n" % sys.argv[0] + __doc__,
+        version="%prog " + nib.__version__)
+    (opts, files) = parser.parse_args()
+
+    for fname in files:
+        fobj = nib.volumeutils.allopen(fname)
+        hdr =  fobj.read(nib.nifti1.header_dtype.itemsize)
+        result = nib.Nifti1Header.diagnose_binaryblock(hdr)
+        if len(result):
+            print 'Picky header check output for "%s"\n' % fname
+            print result
+            print
+        else:
+            print 'Header for "%s" is clean' % fname
+
+
+if __name__ == '__main__':
+    main()