pv: update to 1.6.20.

srcpkgs/pv/patches/null.patch

@@ -1,11 +0,0 @@
---- a/src/pv/number.c
-+++ b/src/pv/number.c
-@@ -2,6 +2,8 @@
-  * Functions for converting strings to numbers.
-  */
- 
-+#include <stddef.h>
-+
- #ifdef HAVE_CONFIG_H
- #include "config.h"
- #endif

srcpkgs/pv/template

@@ -1,6 +1,6 @@
 # Template file for 'pv'
 pkgname=pv
-version=1.6.19
+version=1.6.20
 revision=1
 build_style=gnu-configure
 short_desc="Monitor the progress of data through a pipeline"
@@ -8,4 +8,4 @@ maintainer="Leah Neukirchen <leah@vuxu.org>"
 license="Artistic-2.0"
 homepage="http://www.ivarch.com/programs/pv.shtml"
 distfiles="http://www.ivarch.com/programs/sources/pv-${version}.tar.bz2"
-checksum=aa30823f072cb4953424b0f9b55497b9238cc8e9d47e246cd4ecbf1312f6e835
+checksum=e831951eff0718fba9b1ef286128773b9d0e723e1fbfae88d5a3188814fdc603