tape-admin: cleanup ERRFILE handling

* remove stale error-file
* mtx shouldn't write to stdout

Signed-off-by: Ralf Zerres <ralf.zerres@networkx.de>

bin/tape-admin

@@ -604,6 +604,7 @@ ltfs_mount () {
 	    ${LTFS} -o devname=$ltfs_devname -o verbose=0 $ltfs_mountpoint 1>/dev/null 2>${ERRFILE}
 	fi
 	if [ $? -eq 0 ]; then
+	    rm -f ${ERRFILE}
 	    return 0
 	else
 	    # format tape if needed
@@ -1176,7 +1177,7 @@ mtx_load () {
     fi
 
     make_err_file
-    ${MTX} -f $changer_device load $slot_source $drive 2>${ERRFILE}
+    ${MTX} -f $changer_device load $slot_source $drive 1>/dev/null 2>${ERRFILE}
     RET=$?
     rm -f ${ERRFILE}
 }