General mod_mime_magic cleanup.

The fixes include:

	- change DEBUG define to MIME_MAGIC_DEBUG to avoid namespace
	  collisions.
	- change fprintf(stderr, ...) into log_printf
	- remove '\n's from log_printf calls
	- couple of possible buffer overflow cleanups
	- minor spelling cleanup

Reviewed by:	Ian Kluft, Jim Jagielski
Submitted by:
Obtained from:


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x@78599 13f79535-47bb-0310-9956-ffa450edef68