Improve file name conversion on extraction.

Patch by maximum entropy in pkg/13526.

audio/shorten/distinfo

@@ -1,7 +1,8 @@
-$NetBSD: distinfo,v 1.2 2001/04/18 12:14:37 agc Exp $
+$NetBSD: distinfo,v 1.3 2001/07/21 19:53:49 wiz Exp $
 
 SHA1 (shorten-3.1.tar.gz) = 4f5b939614bc8a6c756f92a95909a39a499932f5
 Size (shorten-3.1.tar.gz) = 162942 bytes
 SHA1 (patch-aa) = eeb637249df8eb5a28018ada92a7e270c8c40ba7
 SHA1 (patch-ab) = ed8ce4a276bf6250600cb6e5559400295d14ed7e
 SHA1 (patch-ac) = c82529b4c1824a1be80834d018782b70dfa17f0d
+SHA1 (patch-ad) = a7adfbfd24c4f214739e2a07f7df8f03ab026c2a

audio/shorten/patches/patch-ad

@@ -0,0 +1,12 @@
+$NetBSD: patch-ad,v 1.1 2001/07/21 19:53:49 wiz Exp $
+
+--- shorten.c.orig	Tue Oct 10 13:14:47 2000
++++ shorten.c	Sat Jul 21 14:24:39 2001
+@@ -669,7 +669,6 @@
+       	  if(strcasecmp(filenamei + newfilelen, WAVESUFFIX))
+ 	#endif
+           {
+-            tmpfilename[newfilelen] = '\0';
+ 	    strcat(tmpfilename,".wav");
+           }
+     	}