merge revision(s) 43775:

	* util.c (ruby_strtod): ignore too long fraction part, which does not
	  affect the result.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_0_0@43778 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
merge revision(s) 43780:

	util.c: more precision

	* util.c (ruby_strtod): BigMath requires more precision.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_0_0@43783 b2dd03c8-39d4-4d8f-98ff-823fe69b080e