weechat: Patch for ruby 2.6 support

packages/weechat/cmake-FindRuby.cmake.patch

@@ -0,0 +1,12 @@
+diff -u -r ../weechat-2.4/cmake/FindRuby.cmake ./cmake/FindRuby.cmake
+--- ../weechat-2.4/cmake/FindRuby.cmake	2019-02-17 07:20:07.000000000 +0000
++++ ./cmake/FindRuby.cmake	2019-02-24 18:49:43.397998264 +0000
+@@ -33,7 +33,7 @@
+ 
+ find_package(PkgConfig)
+ if(PKG_CONFIG_FOUND)
+-  pkg_search_module(RUBY ruby-2.5 ruby-2.4 ruby-2.3 ruby-2.2 ruby-2.1 ruby-2.0 ruby-1.9 ruby-1.8)
++  pkg_search_module(RUBY ruby-2.6 ruby-2.5 ruby-2.4 ruby-2.3 ruby-2.2 ruby-2.1 ruby-2.0 ruby-1.9 ruby-1.8)
+ endif()
+ 
+ if(RUBY_FOUND)