[ruby/irb] Check existence of rc files in irb_info command

https://github.com/ruby/irb/commit/cdbb9dfc9f

1 files changed, 5 insertions, 6 deletions

diff --git a/lib/irb/cmd/info.rb b/lib/irb/cmd/info.rb
index ddf57b00b4..53ec71d754 100644
--- a/lib/irb/cmd/info.rb
+++ b/lib/irb/cmd/info.rb
@@ -9,12 +9,11 @@ module IRB
       def execute
         Class.new {
           def inspect
-            <<~EOM.chomp
-              Ruby version: #{RUBY_VERSION}
-              IRB version: #{IRB.version}
-              InputMethod: #{IRB.CurrentContext.io.inspect}
-              .irbrc path: #{IRB.rc_file}
-            EOM
+            str  = "Ruby version: #{RUBY_VERSION}\n"
+            str += "IRB version: #{IRB.version}\n"
+            str += "InputMethod: #{IRB.CurrentContext.io.inspect}\n"
+            str += ".irbrc path: #{IRB.rc_file}\n" if File.exist?(IRB.rc_file)
+            str
           end
           alias_method :to_s, :inspect
         }.new