musl: fix help2man and others erroring out with invalid locale UTF-8-CODE-UNITS.

This happened when the code incorrectly used the C locale, which on musl is just
UTF-8.

Close #2425

srcpkgs/musl/patches/no-utf8-code-units-locale.patch

@@ -0,0 +1,15 @@
+Temporary fix for https://github.com/voidlinux/void-packages/issues/2425
+
+@dalias affirmed that returning UTF-8 even when requesting C locale is just fine.
+
+--- src/locale/langinfo.c.orig	2015-09-01 08:41:59.830797631 +0200
++++ src/locale/langinfo.c	2015-09-01 08:42:15.324966247 +0200
+@@ -34,7 +34,7 @@ char *__nl_langinfo_l(nl_item item, loca
+ 	const char *str;
+ 
+ 	if (item == CODESET)
+-		return MB_CUR_MAX==1 ? "UTF-8-CODE-UNITS" : "UTF-8";
++		return "UTF-8";
+ 	
+ 	switch (cat) {
+ 	case LC_NUMERIC:

srcpkgs/musl/template

@@ -1,7 +1,7 @@
 # Template file for 'musl'.
 pkgname=musl
 version=1.1.11
-revision=1
+revision=2
 build_pie=yes
 build_style=gnu-configure
 configure_args="--prefix=/usr --disable-gcc-wrapper"