endless-sky: fix build w/ gcc10; remove archs=noarch

srcpkgs/endless-sky/patches/string.patch

@@ -0,0 +1,10 @@
+--- source/Panel.h	2020-05-01 21:02:38.000000000 +0200
++++ source/Panel.h	2020-09-05 07:34:01.667091079 +0200
+@@ -15,6 +15,7 @@
+ 
+ #include "Rectangle.h"
+ 
++#include <string>
+ #include <functional>
+ #include <list>
+ 

srcpkgs/endless-sky/template

@@ -1,7 +1,7 @@
 # Template file for 'endless-sky'
 pkgname=endless-sky
 version=0.9.12
-revision=1
+revision=2
 build_style=scons
 makedepends="SDL2-devel glew-devel libjpeg-turbo-devel libmad-devel
  libopenal-devel libpng-devel"
@@ -15,7 +15,6 @@ checksum=31f76ac11666415478678d924174d43a620a7fd1093e95131776aed12b912eb4
 
 endless-sky-data_package() {
 	short_desc+=" - data files"
-	archs=noarch
 	pkg_install() {
 		vmove usr/share/games/endless-sky
 	}