ignore external library sources [ci skip]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62046 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-01-26 03:13:33 +00:00 · 2018-01-26 03:13:33 +00:00 · f36688449b
--- a/ext/readline/.gitignore
+++ b/ext/readline/.gitignore
@ -0,0 +1 @@
+/readline-[1-9]*.*
--- a/ext/zlib/.gitignore
+++ b/ext/zlib/.gitignore
@ -0,0 +1 @@
+/zlib-[1-9]*.*.*