Use next instead of if at end of iteration

There is a new cop coming called `Next` that will look for this case.

Change-Id: I35ac6acd33065aa4a0b7b7ce6caea711a80b6670
Reviewed-on: http://gerrit.causes.com/37614
Tested-by: jenkins <jenkins@causes.com>
Reviewed-by: Shane da Silva <shane@causes.com>

Author: geniou

lib/scss_lint/config.rb

@@ -128,11 +128,10 @@ def merge_wildcard_linter_options(options)
 
           LinterRegistry.linters.each do |linter_class|
             name = linter_name(linter_class)
+            next unless name.match(class_name_regex)
 
-            if name.match(class_name_regex)
-              old_options = options['linters'].fetch(name, {})
-              options['linters'][name] = smart_merge(old_options, wildcard_options)
-            end
+            old_options = options['linters'].fetch(name, {})
+            options['linters'][name] = smart_merge(old_options, wildcard_options)
           end
         end
 

lib/scss_lint/linter/space_after_comma.rb

@@ -90,10 +90,9 @@ def check_commas_after_args(args, arg_type)
           spaces += 1
           offset += 1
         end
+        next if spaces == EXPECTED_SPACES_AFTER_COMMA
 
-        if spaces != EXPECTED_SPACES_AFTER_COMMA
-          add_lint arg, "Commas in #{arg_type} should be followed by a single space"
-        end
+        add_lint arg, "Commas in #{arg_type} should be followed by a single space"
       end
     end
   end