function report( errs, node ) {
		var pkg;
		var i;
		for ( i = 0; i < errs.length; i++ ) {
			pkg = errs[ i ];
			reportPkg( pkg, node );
		}
	}
Reports error messages.

@private
@param {StringArray} errs - array of packages not exported from `index.js`
@param {ASTNode} node - AST node