K 10
svn:author
V 6
araujo
K 8
svn:date
V 27
2016-04-14T12:25:00.824152Z
K 7
svn:log
V 361
Use NULL instead of 0 for pointers.

fopen(3) will return NULL in case it can't open the STREAM.
The malloc will return a pointer to the allocated memory if successful,
otherwise a NULL pointer is returned.

Also add an extra DEBUG1 to print out the error to open a file.

Reviewed by:	ed
Differential Revision:	https://svnweb.freebsd.org/changeset/base/297959

END