Added number support to version text formatter (#1620)

lib/text-formatters.js

@@ -68,6 +68,7 @@ function omitv(version) {
 // - it is a date (yyyy-mm-dd)
 const ignoredVersionPatterns = /^[^0-9]|[0-9]{4}-[0-9]{2}-[0-9]{2}/;
 function addv(version) {
+  version = '' + version;
   if (version.startsWith('v') || ignoredVersionPatterns.test(version)) {
     return version;
   } else {

lib/text-formatters.spec.js

@@ -56,6 +56,8 @@ describe('Text formatters', function() {
   });
 
   test(addv, () => {
+    given(9).expect('v9');
+    given(0.1).expect('v0.1');
     given('1.0.0').expect('v1.0.0');
     given('v0.6').expect('v0.6');
     given('hello').expect('hello');