* lib/net/imap.rb (Net::IMAP::ResponseParser::BEG_REGEXP): no need to use embbed

string.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48518 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

lib/net/imap.rb

@@ -2100,9 +2100,9 @@ module Net
 
       BEG_REGEXP = /\G(?:\
 (?# 1:  SPACE   )( +)|\
-(?# 2:  NIL     )(NIL)(?=[\x80-\xff(){ \x00-\x1f\x7f%*#{'"'}\\\[\]+])|\
-(?# 3:  NUMBER  )(\d+)(?=[\x80-\xff(){ \x00-\x1f\x7f%*#{'"'}\\\[\]+])|\
-(?# 4:  ATOM    )([^\x80-\xff(){ \x00-\x1f\x7f%*#{'"'}\\\[\]+]+)|\
+(?# 2:  NIL     )(NIL)(?=[\x80-\xff(){ \x00-\x1f\x7f%*"\\\[\]+])|\
+(?# 3:  NUMBER  )(\d+)(?=[\x80-\xff(){ \x00-\x1f\x7f%*"\\\[\]+])|\
+(?# 4:  ATOM    )([^\x80-\xff(){ \x00-\x1f\x7f%*"\\\[\]+]+)|\
 (?# 5:  QUOTED  )"((?:[^\x00\r\n"\\]|\\["\\])*)"|\
 (?# 6:  LPAR    )(\()|\
 (?# 7:  RPAR    )(\))|\