[ruby] Fix typo.

[Vít Ondruch]

commit 098cd8787a738c16e2583c47b364f6389b553838
Author: Vít Ondruch <vondruch at redhat.com>
Date:   Wed May 7 15:43:31 2014 +0200

    Fix typo.

 ruby.spec |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/ruby.spec b/ruby.spec
index df45731..c1beea5 100644
--- a/ruby.spec
+++ b/ruby.spec
@@ -430,7 +430,7 @@ install -m644 %{SOURCE7} %{buildroot}%{_includedir}/%{name}/config.h
 # http://bugs.ruby-lang.org/issues/7807
 sed -i 's/Version: \${ruby_version}/Version: %{ruby_version}/' %{buildroot}%{_libdir}/pkgconfig/%{name}.pc
 
-# Kill bundled certificates, as they should be part of ca-sertificates.
+# Kill bundled certificates, as they should be part of ca-certificates.
 for cert in \
   Class3PublicPrimaryCertificationAuthority.pem \
   DigiCertHighAssuranceEVRootCA.pem \