Sanitize deprecation notice for safe SVG outputting

Author: ttaylorr

lib/geo_pattern/pattern_generator.rb

@@ -83,7 +83,7 @@ def generate_background
     def generate_pattern
       if opts[:generator].is_a? String
         generator = PATTERNS[opts[:generator]]
-        puts "String pattern references are deprecated as of 1.3.0"
+        puts SVG.as_comment("String pattern references are deprecated as of 1.3.0")
       elsif opts[:generator].is_a? BasePattern
         if PATTERNS.values.include? opts[:generator]
           generator = opts[:generator]

lib/geo_pattern/svg.rb

@@ -63,5 +63,9 @@ def write_args(args)
       }
       str
     end
+
+    def self.as_comment(str)
+      "<!-- #{str} -->"
+    end
   end
 end