[rubygems/rubygems] Allow spaces in file headers during octal check

https://github.com/rubygems/rubygems/commit/e9e25731d8

1 files changed, 2 insertions, 1 deletions

diff --git a/lib/rubygems/package/tar_header.rb b/lib/rubygems/package/tar_header.rb
index c37612772a..83a208bdf3 100644
--- a/lib/rubygems/package/tar_header.rb
+++ b/lib/rubygems/package/tar_header.rb
@@ -126,7 +126,8 @@ class Gem::Package::TarHeader
   end
 
   def self.strict_oct(str)
-    return str.oct if str =~ /\A[0-7]*\z/
+    return str.strip.oct if str.strip =~ /\A[0-7]*\z/
+
     raise ArgumentError, "#{str.inspect} is not an octal string"
   end