tweaking the ruby-mode snippets slightly

extras/imported/ruby-mode/RDoc/RDoc documentation block.yasnippet

@@ -4,6 +4,6 @@
 # name: New Block
 ## condition: "source.ruby"
 # --
-`[[ $TM_LINE_INDEX != 0 ]] && echo; echo`=begin rdoc
+`(if (save-restriction (widen) (eq 1 (line-number-at-pos))) "\n\n" "\n")`=begin rdoc
 	$0
 =end

extras/imported/ruby-mode/RDoc/yields RDoc comment.yasnippet

@@ -2,6 +2,6 @@
 # key: y
 # contributor: Translated from TextMate Snippet
 # name: :yields:
-## condition: "source.ruby comment"
+# condition: (yas/ruby-in-comment-p)
 # --
- :yields: ${0:arguments}
+ :yields: ${1:arguments}