fix line ending check for string literal detection

lib/imap.js

@@ -22,7 +22,7 @@ var CRLF = '\r\n',
       BOXSELECTING: 3,
       BOXSELECTED: 4
     },
-    RE_LITHEADER = /(?:((?:BODY\[.*\](?:<\d+>)?)?|[^ ]+) )?\{(\d+)\}$/i,
+    RE_LITHEADER = /(?:((?:BODY\[.*\](?:<\d+>)?)?|[^ ]+) )?\{(\d+)\}\r\n/i,
     RE_UNRESP = /^\* (OK|PREAUTH|NO|BAD)(?:\r\n|(?: \[(.+?)\])?(?: (.+))?)$/i,
     RE_TAGGED_RESP = /^A\d+ (OK|NO|BAD) (?:\[(.+?)\] )?(.+)$/i,
     RE_TEXT_CODE = /([^ ]+)(?: (.*))?$/,