diff -urN wtf.orig/Makefile wtf/Makefile
--- wtf.orig/Makefile	2015-09-24 18:44:26.000000000 +0200
+++ wtf/Makefile	2015-09-24 18:49:18.000000000 +0200
@@ -16,6 +16,9 @@
 NO_BUILD=	yes
 NO_ARCH=	yes
 
+SUB_FILES=	pkg-descr
+SUB_LIST=	PREFIX=${PREFIX}
+
 post-patch:
 	@${REINPLACE_CMD} -e 's|/usr/share/misc|${DATADIR}|g' ${WRKSRC}/wtf*
 
diff -urN wtf.orig/files/pkg-descr.in wtf/files/pkg-descr.in
--- wtf.orig/files/pkg-descr.in	1970-01-01 01:00:00.000000000 +0100
+++ wtf/files/pkg-descr.in	2015-09-24 18:49:10.000000000 +0200
@@ -0,0 +1,3 @@
+Wtf is little shell script taken from NetBSD's CVS repository which
+translates acronyms.  These acronyms are kept in a file located at
+%%PREFIX%%/share/wtf/acronyms.
diff -urN wtf.orig/pkg-descr wtf/pkg-descr
--- wtf.orig/pkg-descr	2015-09-24 18:44:26.000000000 +0200
+++ wtf/pkg-descr	1970-01-01 01:00:00.000000000 +0100
@@ -1,3 +0,0 @@
-Wtf is little shell script taken from NetBSD's CVS repository which
-translates acronyms.  These acronyms are kept in a file located at
-${PREFIX}/share/wtf/acronyms.