fix: 当第一次提交的时候没有tag，默认使用package.json的version

BearJ · BearJ · commit 0bfd770b75ea · 2019-09-26T18:01:49.000+08:00
diff --git a/index.js b/index.js
@@ -38,6 +38,8 @@ function picklog(_args) {
             if (pkgVersion !== previousTag && pkgVersion.split('.').length === previousTag.split('.').length) {
               firstCommit.tag = `${prefix}${pkgVersion}`;
             }
+          } else {
+            firstCommit.tag = `v${pkgVersion}`;
           }
         }
       }

Original file line number	Diff line number	Diff line change
`@@ -38,6 +38,8 @@ function picklog(_args) {`
`38`	`38`	`if (pkgVersion !== previousTag && pkgVersion.split('.').length === previousTag.split('.').length) {`
`39`	`39`	firstCommit.tag = `${prefix}${pkgVersion}`;
`40`	`40`	`}`
	`41`	`+ } else {`
	`42`	+ firstCommit.tag = `v${pkgVersion}`;
`41`	`43`	`}`
`42`	`44`	`}`
`43`	`45`	`}`