made unless less parenfull

lib/lexer.js

@@ -71,7 +71,7 @@
           this.identifierError(id);
         }
       }
-      if (!(forcedIdentifier)) {
+      if (!forcedIdentifier) {
         if (COFFEE_ALIASES.hasOwnProperty(id)) {
           tag = (id = COFFEE_ALIASES[id]);
         }
@@ -398,7 +398,7 @@
       if (herecomment && 0 > doc.indexOf('\n')) {
         return doc;
       }
-      if (!(herecomment)) {
+      if (!herecomment) {
         while (match = HEREDOC_INDENT.exec(doc)) {
           attempt = match[1];
           if (indent === null || (0 < (_ref3 = attempt.length)) && (_ref3 < indent.length)) {
@@ -409,7 +409,7 @@
       if (indent) {
         doc = doc.replace(RegExp("\\n" + indent, "g"), '\n');
       }
-      if (!(herecomment)) {
+      if (!herecomment) {
         doc = doc.replace(/^\n/, '');
       }
       return doc;
@@ -463,7 +463,7 @@
             if (levels.length && starts(str, close, i) && last(levels) === pair) {
               levels.pop();
               i += close.length - 1;
-              if (!(levels.length)) {
+              if (!levels.length) {
                 i += 1;
               }
               break;
@@ -524,7 +524,7 @@
       if (regex) {
         return tokens;
       }
-      if (!(tokens.length)) {
+      if (!tokens.length) {
         return this.token('STRING', '""');
       }
       if (interpolated = tokens.length > 1) {