mailx: update to 12.5pre-100509

we have to use the sources from CVS because version 12.4 refused
to build with openssl 1.0.0.
Looks like the mailx author considers to distribute the sources only
by CVS and no longer via tar-balls.

See
- http://thread.gmane.org/gmane.mail.nail.devel/1390
- http://thread.gmane.org/gmane.mail.nail.devel/1401

mailx/.md5sum

@@ -1 +1 @@
-0c93759e34200eb56a0e7c464680a54a  mailx-12.4.tar.bz2
+f7042ca18fdbfe51765f975a4fbb680a  mailx-12.5pre-100509.tar.xz

mailx/Pkgfile

@@ -4,9 +4,9 @@
 # Depends on:  openssl
 
 name=mailx
-version=12.4
+version=12.5pre-100509
 release=1
-source=(http://dl.sourceforge.net/sourceforge/heirloom/$name-$version.tar.bz2)
+source=(http://crux.s3.amazonaws.com/dist/$name-$version.tar.xz)
 
 build() {
     cd $name-$version