Fix seek test build, by undefining printf and fprintf.

Originally committed as revision 18201 to svn://svn.ffmpeg.org/ffmpeg/trunk

tests/seek_test.c

@@ -27,6 +27,8 @@
 #include "libavformat/avformat.h"
 
 #undef exit
+#undef printf
+#undef fprintf
 
 int main(int argc, char **argv)
 {