mandoc: No need to fork and exec rm(1) -rf, we know that we have exactly

mandoc: No need to fork and exec rm(1) -rf, we know that we have exactly

[schwarze]

Log Message:
-----------
No need to fork and exec rm(1) -rf, we know that we have exactly
one file and exactly one directory to remove.  While here, increase
the size of the buffer such that the file name actually fits.  
Minus 17 lines of code, no functional change.

Opportunity for simplification reported by George Brown <321 dot 
george at gmail dot com> on misc@.

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

Revision Data
-------------
Index: mandocdb.c
===================================================================
RCS file: /home/cvs/mandoc/mandoc/mandocdb.c,v
retrieving revision 1.253
retrieving revision 1.254
diff -Lmandocdb.c -Lmandocdb.c -u -p -r1.253 -r1.254
--- mandocdb.c
+++ mandocdb.c
@@ -2119,7 +2119,7 @@ dbprune(struct dba *dba)
 static void
 dbwrite(struct dba *dba)
 {
-	char		 tfn[32];
+	char		 tfn[33];
 	int		 status;
 	pid_t		 child;
 
@@ -2193,26 +2193,9 @@ dbwrite(struct dba *dba)
 	}
 
 out:
+	unlink(tfn);
 	*strrchr(tfn, '/') = '\0';
-	switch (child = fork()) {
-	case -1:
-		exitcode = (int)MANDOCLEVEL_SYSERR;
-		say("", "&fork rm");
-		return;
-	case 0:
-		execlp("rm", "rm", "-rf", tfn, (char *)NULL);
-		say("", "&exec rm");
-		exit((int)MANDOCLEVEL_SYSERR);
-	default:
-		break;
-	}
-	if (waitpid(child, &status, 0) == -1) {
-		exitcode = (int)MANDOCLEVEL_SYSERR;
-		say("", "&wait rm");
-	} else if (WIFSIGNALED(status) || WEXITSTATUS(status)) {
-		exitcode = (int)MANDOCLEVEL_SYSERR;
-		say("", "%s: Cannot remove temporary directory", tfn);
-	}
+	rmdir(tfn);
 }
 
 static int
--
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