mandoc: Improve rev.

mandoc: Improve rev.

[schwarze]

Log Message:
-----------
Improve rev. 1.250 further:
If a database is empty, we already don't write a database file and
delete an existing one.  If none exists, that only means the database
was empty and remains so, which is not an error.  So don't nag about 
it, in particular because that would be a weekly(8) annoyance.
Issue reported by jmc@.

Modified Files:
--------------
    mandoc:
        mandocdb.c

Revision Data
-------------
Index: mandocdb.c
===================================================================
RCS file: /home/cvs/mandoc/mandoc/mandocdb.c,v
retrieving revision 1.251
retrieving revision 1.252
diff -Lmandocdb.c -Lmandocdb.c -u -p -r1.251 -r1.252
--- mandocdb.c
+++ mandocdb.c
@@ -2130,7 +2130,7 @@ dbwrite(struct dba *dba)
 
 	dba_array_start(dba->pages);
 	if (dba_array_next(dba->pages) == NULL) {
-		if (unlink(MANDOC_DB) == -1)
+		if (unlink(MANDOC_DB) == -1 && errno != ENOENT)
 			say(MANDOC_DB, "&unlink");
 		return;
 	}
--
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