fix version patcher

Author: avsej

bin/jenkins/patch-version.rb

@@ -25,5 +25,5 @@
 ver_file = File.join(__dir__, "../../lib/couchbase/version.rb")
 
 old_content = File.read(ver_file)
-new_content = old_content.gsub(/sdk => "([^"]+?)(\.#{suffix}(\.\d+)?)?"/, %(sdk => "\\1.#{suffix}.#{build_num}"))
+new_content = old_content.gsub(/sdk => "([^"]+?)(\.#{suffix}(\.\d+)?)"/, %(sdk => "\\1.#{suffix}.#{build_num}"))
 File.write(ver_file, new_content)