Merge in two patches from Dave Cinege:

the first is a cleanup of tar --exclude
    the second changes mount so mtab works more as it should, and
    also allows mount to use the traditional short form (i.e.
    'mount / -o remount,rw' now works.

While inside tar, I changed it to use getopt...
 -Erik

docs/busybox.sgml

@@ -2901,10 +2901,10 @@
 
 		<para>
 		<screen>
-			f FILE		Use FILE for tarfile (or stdin if '-')
-		        O		Extract to stdout
-        		--exclude FILE	Exclude FILE
-			v		List files processed
+			f FILE			Use FILE for tarfile (or stdin if '-')
+			O				Extract to stdout
+			exclude FILE	File to exclude
+			v				List files processed
 		</screen>
 		</para>