fix typo in error message in parsePrimary (fixed #297)
fix typo in error message in parsePrimary (fixed #297)

campbellwmorgan/nunjucks,carljm/nunjucks,internalfx/nunjucks,campbellwmorgan/nunjucks,punkave/nunjucks,pardo/nunjucks,node-modules/nunjucks,node-modules/nunjucks,santoshsahoo/nunjucks,atorkhov/nunjucks,atorkhov/nunjucks,robgraeber/nunjucks,rhengles/nunjucks,robgraeber/nunjucks,oddbird/nunjucks,vigetlabs/nunjucks,oddbird/nunjucks,santoshsahoo/nunjucks,devoidfury/nunjucks,fabien/nunjucks,node-modules/nunjucks,internalfx/nunjucks,kevinschaul/nunjucks,AaronO/nunjucks,pardo/nunjucks,internalfx/nunjucks,AaronO/nunjucks,carljm/nunjucks,rhengles/nunjucks,atorkhov/nunjucks,fabien/nunjucks,vigetlabs/nunjucks,punkave/nunjucks,rhengles/nunjucks,oddbird/nunjucks,atorkhov/nunjucks,santoshsahoo/nunjucks,kevinschaul/nunjucks,fabien/nunjucks,node-modules/nunjucks,oddbird/nunjucks,robgraeber/nunjucks,santoshsahoo/nunjucks,mozilla/nunjucks,kevinschaul/nunjucks,devoidfury/nunjucks,kevinschaul/nunjucks,rhengles/nunjucks,vigetlabs/nunjucks,vigetlabs/nunjucks,campbellwmorgan/nunjucks,AaronO/nunjucks,mozilla/nunjucks,devoidfury/nunjucks,carljm/nunjucks,pardo/nunjucks,punkave/nunjucks,AaronO/nunjucks,carljm/nunjucks,mozilla/nunjucks,internalfx/nunjucks,pardo/nunjucks,campbellwmorgan/nunjucks,fabien/nunjucks,punkave/nunjucks,robgraeber/nunjucks