Spacing fixes, not that I can see any difference in the diff

Author: issyl0

Library/Homebrew/utils/pypi.rb

@@ -99,7 +99,7 @@ def to_s
       if valid_pypi_package?
         out = T.must(name)
         if (pypi_extras = extras.presence)
-          out += "[#{pypi_extras.join(",")}]" 
+          out += "[#{pypi_extras.join(",")}]"
         end
         out += "==#{version}" if version.present?
         out